● Results: plot Max principal of stress and displacement results
PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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Step 1. Create a Database
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-10
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Step 4. Create a Displacement at right End(Cont.)
a. Click under Select Nodes and select the right node as shown in the figure. b. Click Add. c. Click OK. d. Click Apply.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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Step 4. Create a Displacement at right End
A displacement will be applied to a group of nodes at the end of the hole plate: a. Loads / BCs: Create / Displacement / Nodal b. Click under New Set Name and enter displacemen. c. Select Input Data. d. Enter < 0.2 , , >on Translations <T1 T2 T3>. e. Click OK. f. Click Select Application Region. g. Select FEM on Geometry Filter.
HOLE PLATE
PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
WS2-1
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Workshop Objectives
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Model a hole plate, using shell elements, subjected to a displacement loading. The shell elements will undergo plane strain. MD Patran and MD Nastran will be used to create or analyze the linear static model.
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Create a database named cantilevered_plate.db and specify the model preferences: a. File / New b. Enter Hole_plate as the file name. c. Click OK. d. Choose Default Tolerance. e. Select MD Nastran as the Analysis Code. f. Select Structural as the Analysis Type. g. Click OK.
● Database: create a new database with Analysis Code = MD Nastran and ● ● ● ●
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Analysis Type = Structural Geometry: create a geometric surface to represent the hole plate Elements: mesh the surface with plate elements Loads/BCs: constrain one end of the plate model, and apply the displacement load to the other end of the plate model. Materials: specify an isotropic material for Aluminum Properties: create a 2D shell/plate property Analysis: Solution Type = Nastran Linear Static, Solution Sequence = 101, Method = Full Run Analysis: access analysis results by attaching the XDB file to database
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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Step 2. Create Geometry of the Plate(Cont.)
a. b. c. d.
Geometry: Create / Curve / 2D Circle Input the radius 0.3 Input Center point [1 0.8 0] Click Apply
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-6
Step 2. Create Geometry of the Plate(Cont.)
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Geometry: Edit / Surface / Break Select ‘Delete Original Surfaces’ Input Surface 1 Input Curve 1 Click Apply
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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Step 3. Meshing with Quad4 Elements
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a. Elements: Create / Mesh / Surface b. Select Elem Shape: Quad Mesher: Paver Topology: Quad4 c. Click on Surface List and select Surface 2. d. Input global Length : 0.1 e. Click Apply.
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பைடு நூலகம்
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Software Version
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MD Patran R2 MD Nastran R2
PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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Key Concepts and Steps:
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation
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Step 2. Create Geometry of the Plate
a. Geometry: Create / Surface / XYZ b. Click under Vector Coordinates List and enter <2 1.6 0>. c. Click Apply.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-13
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Step 5. Create Constraints on the Plate(Fixed_2)
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Constrain the hole plate, fixing five degrees of freedom at other left nodes: a. Loads / BCs: Create / Displacements / Nodal b. Click under New Set Name, and enter fix_2. c. Select Input Data. d. Enter <0 , , 0> for Translations <T1 T2 T3 > and <0 0 0> for Rotations <R1 R2 R3>. e. Click OK. f. Click on Select Application Region. g. Select FEM on Geometry Filter.
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-14
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PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-12
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Step 5. Create Constraints on the Plate (Fixed_1 Cont.)