ELEATION’s HyperWorks Basic to Professional Training Program

Training Sessions
Schedule
Certificate
Internship Project

Session_1_Theory of CAE

  1. 1. How many methods to Validate any Design?
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  2. 2. How many Numerical Methods are there?
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  3. 3. Numerical Method is applicable even if physical prototype is not available.
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  4. 4. FEA (Finite Element Analysis) and FEM (Finite Element Method) both are same.
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  5. 5. CAE depends on CAD.
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Session_2_Theory of FEA/FEM

  1. 1. We carry out meshing to convert infinite number of points to finite number of points (nodes).
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  2. 2. There are a total of _ degree of freedoms.
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  3. 3. The entity formed by joining nodes is called as element.
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  4. 4. All calculations are done on finite number of points known as nodes.
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  5. 5. Results are calculated at nodes and interpolated for the elements.
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Session_3_1D Elements Theory

  1. 1. 1D elements should be used when one dimension is very very large in comparison to the other two.
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  2. 2. 1D element shape is a ______.
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  3. 3. Additional data required for 1D elements is ____.
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  4. 4. For most of the linear Static 1D Analysis we can use the formula as MHPCLL.
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  5. 5. HyperMesh is a pre-processor.
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Session_4_Rod Problem - Tension

  1. 1. New material is defined with card images in Hypermesh.
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  2. 2. Material is defined using ______ card image in Hypermesh
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  3. 3. ______ card image is used to create property for rod element
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  4. 4. Rod element only supports for axial loads or torque loads
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  5. 5. Cross-section is created using HyperBeam
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Session_5_Bar Problem - Compression

  1. 1. Bar element only supports symmetric cross-section
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  2. 2. Material is defined using ______ card image in Hypermesh
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  3. 3. ______ card image is used to create property for bar element
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  4. 4. Bar element only supports axial loads or torque loads
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  5. 5. Orientation needs to be defined for 1D bar elements
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Session_6_Beam Problem 1 - Bending

  1. 1. Beam element only supports symmetric cross-section.
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  2. 2. C,D,E and F points should be defined for beam bending problems.
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  3. 3. ______ card image is used to create property for beam element.
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  4. 4. Beam element only supports axial loads or torque loads.
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  5. 5. Orientation needs to be defined for 1D beam elements.
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Session_7_Beam Problem 2 - Bending (Case 1 and Case 2)

  1. 1. Beam element only supports unsymmetric cross-section.
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  2. 2. C,D,E and F points needs be defined for beam bending problems.
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  3. 3. C,D,E and F points needs to be defined for beam axial loading problems.
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  4. 4. Beam element only supports bending loads.
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  5. 5. Orientation needs to be defined for 1D beam elements.
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Session_8_Beam Problem - Fix Fix

  1. 1. Stress results can be viewed individually on node A and node B.
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  2. 2. Cross section used for the classwork problem statement is rectangular tube.
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  3. 3. C,D,E and F points needs to be defined for beam axial loading problems.
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  4. 4. Total length of the beam for classwork problem statement is 1000 mm.
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  5. 5. Orientation needs to be defined for 1D beam elements.
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Session_9_Beam Problem - Simply Supported

  1. 1. Beam element only supports unsymmetric cross-section.
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  2. 2. Cross section used for the classwork problem statement is circular tube.
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  3. 3. C,D,E and F points needs to be defined for beam axial loading problems.
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  4. 4. Beam element only supports bending loads.
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  5. 5. Total length of the beam for classwork problem statement is 1000 mm.
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Session_10_Nodes, Node Edit, Temp Nodes, Distance, Line, Line Edit Panels

  1. 1. Arc center node can be created using nodes panel.
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  2. 2. Arc center node can be created using distance panel.
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  3. 3. “Extract Parametric” option is present in Lines panel.
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  4. 4. Node can be moved outside surfaces using “move node” option under node edit panel.
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  5. 5. Three nodes option can be used to find out angle in “distance” panel.
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Session_11_Free-Free Run - Theory

  1. 1. Free free run is a sub type of normal modes analysis.
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  2. 2. We get disconnected model because the CAD software works on different platform and CAE software works on Different platform.
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  3. 3. Tolerance is a gap between any two entity which you want to be connected.
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  4. 4. We give “number of mode shapes” as an input for free free run.
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  5. 5. We constrain the model for free free run.
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Session_12_Free Free Run - Problem Statement

  1. 1. Free free run is a sub type of normal modes analysis.
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  2. 2. In classwork problem, frequency range used is ____.
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  3. 3. A circular tube cross section is used in classwork problem statement.
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  4. 4. We give “number of mode shapes” as an input for free free run.
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  5. 5. We define constraints on the model for free free run.
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Session_13_2D Meshing - Theory

  1. 1. How Many nodes does Second order Tria Element has?
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  2. 2. Holes should be modeled carefully with a washer (1.5 to 2 times diameter).
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  3. 3. Ideal Value of Warpage Angle is 0 Degree.
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  4. 4. Acceptable value of aspect ratio is less than 5.
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  5. 5. Ideal Value of Jacobian is 0.6.
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Session_14_2D Geometry Editing - Importing and Repairing CAD

  1. 1. Missing surfaces can be created using surface panel.
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  2. 2. Tolerance is not needed for toggle edge option under quick edit panel.
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  3. 3. Duplicate surfaces can be deleted using delete panel.
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  4. 4. Free edge is an edge connected to two surfaces.
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  5. 5. Shared edge is an edge connected to two surfaces.
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Session_15_2D Geometry Editing - Generating a Midsurface

  1. 1. Midsurface panel is under 2D page in Hypermesh.
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  2. 2. Auto midsuface option can be used to extract midsurface on an enclosed volume.
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  3. 3. Midsurface cannot be extracted manually using a surface pair.
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  4. 4. A new component is automatically create after auto mid surface extraction.
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  5. 5. Transparency can be defined in hypermesh.
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Session_16_2D Geometry Editing - Simplifying Geometry

  1. 1. Pinholes can be deleted using delete panel.
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  2. 2. Defeature panel can be used to remove edge fillets.
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  3. 3. Defeaturing surface fillets requires only diameter range input.
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  4. 4. Min angle needs to be defined for edge fillets defeature using defeature panel.
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  5. 5. Duplicate surfaces can be identified using defeature panel.
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Session_17_2D Geometry Editing - Refining Topology

  1. 1. Check elems panel can be used to check elements quality.
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  2. 2. Fixed points can be removed using quick edit panel.
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  3. 3. Points can be replaced by using quick edit panel.
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  4. 4. Split surf-line option can be used to split surfaces.
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  5. 5. Suppress edge is also known as free edge.
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Session_18_2D Geometry Editing - Roll Cage

  1. 1. Mask panel can be used to delete surfaces.
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  2. 2. Surface pair option can be used to manually extract midsurfaces.
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  3. 3. While extracting a midsurface a new component is automatically created.
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  4. 4. Extend option used to extend surfaces can be found in surface panel.
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  5. 5. Mask panel is used to hide surfaces.
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Session_19_Surface, Surface Edit, Defeauture Panels

  1. 1. A line can be used to create a surface using drag operation.
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  2. 2. To create a surface using ruled panel a single line needs to be defined.
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  3. 3. To create a surface using skin panel a single line needs to be defined.
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  4. 4. Untrim can be used to remove trims from a surface.
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  5. 5. Two nodes can be used to trim a surface.
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Session_20_Plate With Hole - Without Washer

  1. 1. In classwork problem statement thickness of 10 mm is used.
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  2. 2. In classwork problem statement thickness of 1 mm is used.
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  3. 3. In classwork problem statement force of 100 N is used.
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  4. 4. In classwork problem statement element size of 100 mm is used.
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  5. 5. In classwork problem statement element type quad is used.
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Session_21_Plate With Hole - With Washer

  1. 1. In classwork problem statement washer is created of 100 mm diameter.
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  2. 2. In classwork problem statement washer is not created.
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  3. 3. In classwork problem statement ruled panel is used to create mesh.
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  4. 4. In classwork problem statement automesh panel is used to create mesh.
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  5. 5. In classwork problem statement number of elements around hole is kept as 12.
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Session_22_Plate With Hole - Biasing

  1. 1. In classwork problem statement a mesh with bias factor of 5 is shown.
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  2. 2. In classwork problem statement washer is not created.
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  3. 3. In classwork problem statement automesh panel is used to create mesh.
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  4. 4. In classwork problem statement ruled panel is used to create mesh.
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  5. 5. In classwork problem statement number of elements on edges is kept as 8.
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Session_23_2D Meshing - Automesh (Size & Bias)

  1. 1. In size and bias automesh panel element order can be defined.
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  2. 2. In size and bias automesh panel element size input is necessary.
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  3. 3. In automesh panel biasing can be defined without using interactive secondary panel.
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  4. 4. Automesh panel can be accessed using 2D page in Hypermesh.
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  5. 5. Mapping can be defined in automesh interactive secondary panel.
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Session_24_2D Meshing - Automesh (Edge/Surface deviation etc.)

  1. 1. Edge deviation automesh panel can be used to create a good quality mesh on curvatures.
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  2. 2. Max angle input is present in Edge deviation automesh panel.
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  3. 3. Growth rate input is present in surface deviation automesh panel.
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  4. 4. Automesh panel can be accessed using 2D page in Hypermesh.
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  5. 5. Mapping can be defined in automesh interactive secondary panel.
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Session_25_2D Meshing - Automesh (QI Optimize)

  1. 1. Edge deviation automesh panel can be used to create a good quality mesh on curvatures.
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  2. 2. Max angle input is present in size and bias automesh panel.
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  3. 3. Growth rate input is present in edge deviation automesh panel.
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  4. 4. Automesh panel can be accessed using 2D page in Hypermesh.
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  5. 5. Target element size must be defined for QI optimize automesh panel.
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Session_26_2D Meshing - Ruled, Spline, Skin etc.

  1. 1. Scale panel is present in Tool page.
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  2. 2. Spline panel in 2D page can be used to create 3D mesh.
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  3. 3. Surfaces needs to be defined in ruled panel to create 2D elements.
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  4. 4. Drag geoms option in line drag panel can be used to create 2D elements.
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  5. 5. Adjacent lines can be selected to create 2D elements in skin panel.
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Session_27_3D Meshing - Theory

  1. 1. How many 3D Element shapes are there?
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  2. 2. Parabolic Penta Element has 6 nodes.
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  3. 3. How many nodes does hex element has?
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  4. 4. 3D Element have 3 DOFs.
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  5. 5. Ideal value of tetra collapse is 1.
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Session_28_3D Geometry Editing

  1. 1. Bounding surfaces option in Solids panel can be used to create solid geometry.
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  2. 2. Only height needs to be defined to create a solid cylinder geometry.
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  3. 3. Boolean operation can be used to remove common solid between two solids?
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  4. 4. Mappable solid can be either 1 direction or 3 direction.
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  5. 5. All 3D geometries are mappable by default.
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Session_29_Solid & Solid Edit Panels

  1. 1. 4 nodes need to be defined to create a solid block using block option in solids panel.
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  2. 2. Only height needs to be defined to create a solid cylinder geometry.
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  3. 3. Boolean operation can be used to unite solids.
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  4. 4. Ruled option in solids panel needs opposite surfaces to create a solid.
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  5. 5. Only radius needs to be defined for creating solid sphere.
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Session_30_3D Meshing - Tetrameshing

  1. 1. Volume tetra option in tetramesh panel needs an enclosed volume to create a mesh.
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  2. 2. 2D and 3D type can be defined separately in volume tetra panel.
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  3. 3. Curvature option can be enabled in tetramesh to manipulate elements on the curvature.
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  4. 4. Proximity can be enabled in Tetra mesh option under tetramesh panel.
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  5. 5. Tetra collapse can be checked using check elems panel.
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Session_31_3D Meshing - Hex-Penta Mesh using Surfaces

  1. 1. 2D elements can be dragged to create 3D elements.
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  2. 2. Tetra elements can be created by using elem offset panel.
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  3. 3. Penta elements can be created by using elem offset panel.
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  4. 4. Linear solid panel can be used to create 3D elements between 2D elements.
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  5. 5. Edges panel can be used to check element connectivity for 3D elements.
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Session_32_3D Meshing - Hexahedral Mesh using the Solid Map

  1. 1. Solid map one volume option can be used to create a hex-penta mesh.
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  2. 2. 2D elements can be given to create a better quality mesh in one volume panel.
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  3. 3. Solid map one volume panel has an interactive panel option.
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  4. 4. 2D element type can be defined while creating 3D mesh.
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  5. 5. Solid map multi solids panel has an interactive panel option.
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Session_33_Linear Static Analysis - Theory

  1. 1. Linear static analysis calculates temperatures and heat flux.
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  2. 2. Linear static analysis is a linear analysis with linear material.
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  3. 3. Time based load can be define in linear static analysis.
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  4. 4. Thermal loads which causes thermal expansion can be defined in linear static analysis.
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  5. 5. Hookes law is used to calculate stresses.
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Session_34_Linear Static Analysis - Problem Statement 1

  1. 1. In classwork problem statement front impact analysis has been performed.
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  2. 2. Linear steel material is used in classwork problem.
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  3. 3. Constraints were applied only on the rear in classwork problem.
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  4. 4. N1 and N2 can be used to select two nodes which defines the direction for force.
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  5. 5. A 2D roll cage model is used in classwork problem.
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Session_35_Linear Static Analysis - Problem Statement 2

  1. 1. In classwork problem statement front impact analysis has been performed.
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  2. 2. Linear steel material is used in classwork problem.
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  3. 3. Constraints were applied on top and bottom holes in classwork problem.
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  4. 4. N1 and N2 can be used to select two nodes which defines the direction for force.
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  5. 5. A 2D roll cage model is used in classwork problem.
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Session_36_Thermal Stress Analysis - Theory

  1. 1. A thermal analysis determines the temperatures etc in structures or components.
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  2. 2. Thermal stress analysis can be used to calculate stresses induced in the component because of thermal expansion etc.
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  3. 3. Thermal stress analysis can be done before or after performing a thermal analysis.
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  4. 4. Thermal stresses are produced due to thermal exapnsion.
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  5. 5. Thermal analysis should be performed first before performing thermal stress analysis.
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Session_37_Thermal Stress Analysis - Problem Statement

  1. 1. A thermal analysis determines the temperatures etc in structures or components.
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  2. 2. Thermal stress analysis can be used to calculate stresses induced in the component because of thermal expansion etc.
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  3. 3. A thermal stress analysis was carried out on a coffee lid in classwork problem statement.
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  4. 4. Thermal stresses are produced due to thermal exapnsion.
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  5. 5. A temperature of 500 degrees was applied on a coffee lid in classwork problem statement.
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Session_38_Thermal Stress Analysis with Anisotropic Material - Problem Statement

  1. 1. A thermal analysis determines the temperatures etc in structures or components.
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  2. 2. Thermal stress analysis can be used to calculate stresses induced in the component because of thermal expansion etc.
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  3. 3. A thermal stress analysis was carried out on a coffee lid in classwork problem statement.
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  4. 4. An anisotropic material was used in the classwork problem statement.
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  5. 5. A temperature of 500 degrees was applied on a pcb in classwork problem statement.
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Session_39_Linear Steady State Heat Transfer Analysis - Theory

  1. 1. Heat transfer analysis solves for unknown temperatures and fluxes under thermal loading.
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  2. 2. In linear steady state analysis material properties such as conductivity and convection coefficient are linear.
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  3. 3. Convection deals with thermal energy exchange by molecular motion.
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  4. 4. Free convection deals with thermal energy exchange between solids and surrounding fluids.
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  5. 5. Internal heat generation can be defined in a thermal analysis.
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Session_40_Linear Steady State Heat Transfer Analysis - Problem Statement

  1. 1. A pre meshed pipe is shown as the classwork model.
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  2. 2. Convection is defined in the classwork problem statement.
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  3. 3. Ambient temperature of 40 degrees was defined in the classwork problem.
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  4. 4. Temperature can be defined using constraints panel.
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  5. 5. In a linear thermal analysis the material properties are linear.
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Session_41_Coupled Linear Heat Transfer Analysis - Theory

  1. 1. In coupled thermal structural analysis thermal analysis is performed first.
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  2. 2. Temperature field is obtained from thermal analysis.
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  3. 3. Temperature field obtained from thermal analysis is used as loading in structural analysis.
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  4. 4. A single mesh cannot be used for thermal and structural analysis.
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  5. 5. The coupling in thermal structural analysis is sequential.
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Session_42_Coupled Linear Heat Transfer Analysis - Problem Statement

  1. 1. A pre meshed pipe is shown as the classwork model.
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  2. 2. Convection is defined in the classwork problem statement.
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  3. 3. Ambient temperature of 40 degrees was defined in the classwork problem.
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  4. 4. Temperature can be defined using constraints panel.
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  5. 5. To apply flux interface elements must be created.
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Session_43_Linear Transient Heat Transfer Analysis - Theory

  1. 1. Linear transient heat transfer analysis can be used to calculate the temperature distribution in a system with respect to time.
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  2. 2. The applied thermal loads can either be time-dependent or time-invariant.
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  3. 3. Convection deals with thermal energy exchange by molecular motion.
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  4. 4. Heat transfer analysis solves for unknown temperatures and fluxes under thermal loading.
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  5. 5. Free convection deals with thermal energy exchange between solids and surrounding fluids.
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Session_44_Linear Transient Heat Transfer Analysis - Problem Statement

  1. 1. A pre meshed fin is shown as the classwork model.
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  2. 2. Convection is defined in the classwork problem statement.
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  3. 3. Ambient temperature of 40 degrees was defined in the classwork problem.
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  4. 4. Temperature can be defined using TEMPD card image.
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  5. 5. To apply flux interface elements must be created.
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Session_45_Inertia Relief - Theory

  1. 1. Inertia relief allows the simulation of unconstrained structures.
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  2. 2. With inertia relief the applied loads are balanced by a set of translational and rotational accelerations.
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  3. 3. In Inertia relief Sum total of the applied forces on the structure is non-zero.
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  4. 4. In Inertia relief Boundary conditions are applied only to restrain rigid body motion.
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  5. 5. In OptiStruct, inertia relief can be applied to normal modes analysis.
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Session_46_Inertia Relief - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were created in the classwork problem.
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  4. 4. SUPORT1 card was used to define constraints in the classwork problem.
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  5. 5. PARAM INREL -1 was defined in the classwork problem.
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Session_47_Eigenvalue Buckling Analysis - Theory

  1. 1. Linear Buckling Analysis is used to calculate critical load.
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  2. 2. The problem of linear buckling in finite element analysis is solved by first applying a reference level of loading to the structure.
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  3. 3. Buckling analysis cannot be performed if the referential static loading subcase uses inertia relief.
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  4. 4. Buckling analysis calculates load multiplier.
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  5. 5. Linear Buckling Analysis is a linear analysis.
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Session_48_Eigenvalue Buckling Analysis - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were created in the classwork problem.
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  4. 4. A reference load with linear static analysis is defined first in classwork model.
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  5. 5. A load of 1 N was defined in the classwork problem.
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Session_49_CWELD Elements - Problem Statement

  1. 1. A pre meshed plate is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were created in the classwork problem.
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  4. 4. CWELD elements were created using spotweld panel in the classwork problem.
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  5. 5. CWELD elements were created between 2D elements in the classwork problem.
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Session_50_Axi-Symmetry - Theory

  1. 1. Axi-symmetry concept is when the model size can be reduced with negligible effect in the result.
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  2. 2. Axi-symmetry concept can be only applied if the geometry is symmetric.
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  3. 3. Axi-symmetry concept can be only applied if the boundary conditions are also symmetric.
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  4. 4. In-Plane Rotation Out of Plane Translation rule can be used to define constraints.
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  5. 5. Axisymmetry concept cannot be defined in hypermesh.
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Session_51_Analysis of an Axi-symmetric Structure - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were created in the classwork problem.
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  4. 4. A pressure of 50 MPa is defined first in classwork model.
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  5. 5. Axisymmetry on half model and cyclic section was performed in classwork model.
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Session_52_Composites - Theory

  1. 1. Plates and shells can be made of layered composites in which several layers of different materials (plies) are bonded together to form a cohesive structure.
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  2. 2. In OptiStruct composite shells, the plies are assumed to be laid in layers parallel to the middle plane of the shell.
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  3. 3. Classical lamination theory is used to calculate effective stiffness and mass density of the composite shell.
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  4. 4. PCOMP or PCOMPG property cards are used instead of PSHELL.
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  5. 5. PCOMP and PCOMPG define the composite lay-up in two different ways.
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Session_53_Composites - Problem Statement

  1. 1. A pre meshed Composite Aircraft Structure is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. A pressure of 50 MPa is defined first in classwork model.
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  5. 5. Half model with axisymmetry was used in classwork model.
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Session_54_Linear and Nonlinear Gap Analysis - Problem Statement

  1. 1. A pre meshed Airplane Wing Rib is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. A pressure load was pre-defined in classwork problem.
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  5. 5. Gap elements were created in classwork problem.
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Session_55_Normal Modes Analysis - Theory

  1. 1. Normal Modes Analysis is also called eigenvalue analysis or eigenvalue extraction.
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  2. 2. Normal Modes Analysis is a technique used to calculate the vibration shapes and associated frequencies that a structure will exhibit.
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  3. 3. In OptiStruct normal modes analysis can be performed using one of two algorithms Lanczos or AMSES.
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  4. 4. The Lanczos method has the advantage that the eigenvalues and associated mode shapes are calculated exactly.
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  5. 5. The AMSES method has the advantage that only a portion of the eigenvector need be calculated.
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Session_56_Normal Modes Analysis - Problem Statement

  1. 1. A pre meshed splash shield is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Rigid elements were created in classwork problem.
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  5. 5. 10 mode shapes were calculated in classwork problem.
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Session_57_Frequency Response Analysis (Direct & Modal) - Theory

  1. 1. Frequency response analysis is used to calculate the response of a structure to steady state oscillatory excitation.
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  2. 2. The loading is sinusoidal in frequency response analysis.
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  3. 3. The results from a frequency response analysis are displacements, velocities, accelerations, forces, stresses, and strains.
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  4. 4. OptiStruct supports Direct and Modal frequency response analysis.
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  5. 5. Mode shapes are calculated first for Modal Frequency Response Analysis.
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Session_58_Direct Frequency Response Analysis - Problem Statement

  1. 1. A pre meshed plate is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Sinusoidal load of 20N was defined in the classwork problem.
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  5. 5. Frequency range of 0 to 1000 Hz was used in classwork problem.
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Session_59_Modal Frequency Response Analysis - Problem Statement

  1. 1. A pre meshed plate is shown as the classwork model.
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  2. 2. Steel material is used in classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Sinusoidal load of 20N was defined in the classwork problem.
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  5. 5. Frequency range of 0 to 1000 Hz was used in classwork problem.
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Session_60_Computation of Equivalent Radiant Power - Theory

  1. 1. ERP stands for equivalent radiated sound power.
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  2. 2. ERP analysis can identify the maximum radiation position of the structural panel.
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  3. 3. ERP results can be used to optimize the structure or add dampers to reduce the vibration of the panel.
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  4. 4. Prerequisite of ERP is Frequency Response Analysis.
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  5. 5. Output of ERP analysis is ERP vs Frequency.
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Session_61_Computation of Equivalent Radiant Power - Problem Statement

  1. 1. A pre meshed plate is shown as the classwork model.
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  2. 2. Frequency response setup is pre-defined in classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. ERP Elements set was created in the classwork problem.
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  5. 5. ERP output was requested in the classwork problem.
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Session_62_Transient Response Analysis (Direct & Modal) - Theory

  1. 1. Transient response analysis is used to calculate the response of a structure to time-dependent loads.
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  2. 2. Typical applications are structures subject to earthquakes, wind, explosions, or a vehicle going through a pothole.
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  3. 3. The loads are time-dependent forces and displacements.
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  4. 4. Initial conditions define the initial displacement and initial velocities in grid points.
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  5. 5. The results of a transient response analysis are displacements, velocities, accelerations, forces, stresses, and strains.
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Session_63_Transient Response Analysis (Direct) - Problem Statement

  1. 1. A pre meshed bracket is shown as the classwork model.
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  2. 2. Steel material is used in the classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Sinusoidal load of 20N was defined in the classwork problem.
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  5. 5. End time of 4s was defined in the classwork problem.
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Session_64_Transient Response Analysis (Modal) - Problem Statement

  1. 1. A pre meshed bracket is shown as the classwork model.
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  2. 2. Steel material is used in the classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Sinusoidal load of 20N was defined in the classwork problem.
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  5. 5. End time of 4s was defined in the classwork problem.
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Session_65_Random Response Analysis - Theory

  1. 1. Random response analysis is used when a structure is subjected to a nondeterministic, continuous excitation.
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  2. 2. Cases likely to involve nondeterministic loads are those linked to conditions such as turbulence on an airplane structure, road surface imperfections on a car structure, noise loads on a given structure, etc.
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  3. 3. There could be fatigue failure due to random vibration.
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  4. 4. Output from Random Response Analysis can be plotted in a graph.
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  5. 5. RMS von Mises stress can be viewed in the results of Random response analysis.
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Session_66_Random Response Analysis of a Flat Plate - Problem Statement

  1. 1. A pre meshed bracket is shown as the classwork model.
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  2. 2. Steel material is used in the classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Direct Frequency Response loadsteps were pre-defined in the classwork problem.
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  5. 5. Random loading was defined in the classwork problem.
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Session_67_Response Spectrum Analysis - Theory

  1. 1. Response Spectrum Analysis is a technique used to estimate the maximum response of a structure for a transient event.
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  2. 2. Maximum displacement, stresses, and forces may be determined in Response Spectrum Analysis.
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  3. 3. Response Spectrum Analysis combines response spectra for a prescribed dynamic loading with results of a normal modes analysis.
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  4. 4. Modal and directional combination is used to getpeak structural response.
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  5. 5. EIGRL card can be used to extract mode shapes.
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Session_68_Response Spectrum Analysis of a Structure - Problem Statement

  1. 1. A pre meshed bracket is shown as the classwork model.
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  2. 2. Material is pre-defined in the classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Direct Frequency Response loadsteps were defined in the classwork problem.
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  5. 5. RS Acceleration was defined in the classwork problem.
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Session_69_Complex Eigenvalue Analysis - Theory

  1. 1. Real eigenvalue analysis is used to compute the normal modes of a structure.
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  2. 2. Complex eigenvalue analysis computes the complex modes of the structure.
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  3. 3. The complex modes contain the imaginary part, which represents the cyclic frequency, and the real part which represents the damping of the mode.
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  4. 4. If the real part is negative, then the mode is said to be stable.
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  5. 5. If the real part is positive, then the mode is unstable.
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Session_70_Complex Eigenvalue Analysis - Problem Statement

  1. 1. A pre meshed bracket is shown as the classwork model.
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  2. 2. Material is pre-defined in the classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. 12 Complex Modes were calculated in the classwork problem.
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  5. 5. Friction coefficient of 0.05 was used in the classwork problem.
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Session_71_Fatigue Analysis - Theory

  1. 1. Fatigue is predicting the life of a structure under cyclical loading.
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  2. 2. The stress-life method works well in predicting fatigue life when the stress level in the structure falls mostly in the elastic range.
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  3. 3. Stress-life method is also known as high cycle fatigue.
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  4. 4. For low-cycle fatigue prediction, the strain-life method is applied, with plastic strains being considered as an important factor in the damage calculation.
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  5. 5. The Dang Van criterion is used to predict if a component will fail in its entire load history.
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Session_72_Fatigue using S-N (Stress - Life) Method - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Aluminium material is used in the classwork problem.
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  3. 3. 2D elements were also used in the classwork problem.
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  4. 4. 2 Linear static loadsteps setup with 2 different loadings were used in the classwork problem.
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  5. 5. Fatigue analysis was carried out using Stress - Life Method in the classwork problem.
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Session_73_Fatigue using E-N (Strain - Life) Method - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Aluminium material is used in the classwork problem.
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  3. 3. 2D elements were also used in the classwork problem.
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  4. 4. 2 Linear static loadsteps setup with 2 different loadings were used in the classwork problem.
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  5. 5. Fatigue analysis was carried out using Stress - Life Method in the classwork problem.
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Session_74_Fatigue Process Manager (FPM) using S-N (Stress - Life) Method - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Aluminium material is used in the classwork problem.
    Next
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  3. 3. 2D elements were also used in the classwork problem.
    Next
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  4. 4. 2 Linear static loadsteps setup with 2 different loadings were used in the classwork problem.
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  5. 5. Fatigue analysis was carried out using Stress - Life Method in the classwork problem.
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Session_75_Fatigue Process Manager (FPM) using E-N (Strain - Life) Method - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Aluminium material is used in the classwork problem.
    Next
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  3. 3. 2D elements were also used in the classwork problem.
    Next
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  4. 4. 2 Linear static loadsteps setup with 2 different loadings were used in the classwork problem.
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  5. 5. Fatigue analysis was carried out using Stress - Life Method in the classwork problem.
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Session_76_Non Linear Quasi Static (NLSTAT) Analysis - Theory

  1. 1. The basic Newton method is used for the solution of nonlinear problems.
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  2. 2. To improve convergence for strongly nonlinear problems, the total loading P is often applied in smaller increments.
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  3. 3. Incremental loading improves the chances of obtaining a final converged solution.
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  4. 4. In order to assess whether the nonlinear process has converged, convergence criteria are used.
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  5. 5. Convergence criteria can be defined on the NLPARM bulk data card.
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Session_77_NLSTAT Analysis of Solid Blocks in Contact - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Elasto-plastic material is used in the classwork problem.
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  3. 3. 2D elements were also used in the classwork problem.
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  4. 4. Pressure loading was pre-defined in the classwork problem.
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  5. 5. A contact type of slide is defined in the classwork problem.
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Session_78_NLSTAT Analysis of Gasket Materials in Contact - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Gasket material is defined in the classwork problem.
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  3. 3. 2D elements were used in the classwork problem.
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  4. 4. Pressure loading was pre-defined in the classwork problem.
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  5. 5. A contact type of slide is defined in the classwork problem.
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Session_79_1D and 3D Pretensioned Bolt Analysis - Theory

  1. 1. Pretensioning actually shortens the working part of the bolt by removing a certain length of the bolt from the active structure.
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  2. 2. Calculation of each bolts shortening due to applied forces requires FEA solution of the entire model with the pretensioning forces applied.
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  3. 3. 1D Bolt Pretensioning can be defined in OptiStruct.
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  4. 4. 2D Bolt Pretensioning can be defined in OptiStruct.
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  5. 5. 3D Bolt Pretensioning can be defined in OptiStruct.
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Session_80_1D and 3D Pretensioned Bolt Analysis - Problem Statement

  1. 1. A pre meshed control arm is shown as the classwork model.
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  2. 2. Pretension is defined in the classwork problem.
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  3. 3. 3D elements were used in the classwork problem.
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  4. 4. Pressure loading was pre-defined in the classwork problem.
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  5. 5. Contacts were created using autocontact option in the classwork problem.
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