patran实例教程——3_Bimaterial_Plate

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详细的patran实例教程

Bi-material Plate

WS2-1

详细的patran实例教程

Step 1. Create a Databasea

dCreate a database named cantilevered_plate.db and specify the model preferences: a. File / New b. Enter Bimaterial 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.

e f b c g

WS2-2

详细的patran实例教程

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.

WS2-3

详细的patran实例教程

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

详细的patran实例教程

Step 2. Create Geometry of the Plate (Cont.)

a. b. c. d. e.

Geometry: Edit / Surface / Break Select ‘Delete Original Surfaces’ Input Surface 1 Input Curve 1 Click Apply

d b

c d c e

WS2-5

详细的patran实例教程

Step 3. Create Group of the Platea

a. Click Group/ Creat b. Click under New Group Name and enter fibre c. Click under Entity Selection and select Surface 3 d. Click Apply

b b

dWS2-6

详细的patran实例教程

Step 3. Create Group of the Plate (Cont.)

a. Click under New Group Name and enter matrix b. Click under Entity Selection and select Surface 2 c. Click Apply

b a

cWS2-7

详细的patran实例教程

Step 4. Meshing with Quad4 Elements

d a f b ea. b. c. d. e. Click Group/post Select fibre Click Apply Elements: Create / Mesh / Surface Select Elem Shape: Quad Mesher: Paver Topology: Quad4 f. Click on Surface List and select Surface 3. g. Input global Length : 0.1 h. Click Apply.PAT301, Workshop 2, September 2007 Copyright 2007 MSC.Software Corporation WS2-8

详细的patran实例教程

Step 4. Meshing with Quad4 Elements (Cont.)a. b. c. d. e. Click Group/post Select matrix Click Apply Elements: Create / Mesh / Surface Select Elem Shape: Quad Mesher: Paver Topology: Quad4 f. Click on Surface List and select Surface 2. g. Input global Length : 0.1 h. Click Apply.

WS2-9

详细的patran实例教程

Step 4. Meshing with Quad4 Elements (Cont.)

aa. b. c. d. Click Group/post Select fibre and matrix Click Apply Elements: Equivalence/ All / Tolerance Cube e. Click Apply.

cWS2-10

详细的patran实例教程

Step 4. Meshing with Quad4 Elements (Cont.)

a. Elements: Verify/ Element / Boundaries b. Display Type: select Free Edges c. Click Apply

. Your model should look like the following:

WS2-11

详细的patran实例教程

Step 5. 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.

a d

详细的patran实例教程

Step 5. 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.

a b

dWS2-13

详细的patran实例教程

Step 6. Create Constraints on the Plate(Fixed_1)

g aConstrain the hole plate, fixing all six degrees of freedom at left down node: a. Loads / BCs: Create / Displacements / Nodal b. Click under New Set Name, and enter fix_1. c. Select Input Data. d. Enter <0 0 0> for Translations <T1 T2 T3 > and Rotations <R1 R2 R3>. e. Click OK. f. Click on Select Application Region. g. Select FEM on Geometry Filter.

详细的patran实例教程

Step 6. Create Constraints on the Plate (Fixed_1 Cont.)

a. Click under Select Nodes b. Select the node shown in the figure c. Click Add. d. Click OK. e. Click Apply.

a c

eWS2-15

详细的patran实例教程

Step 6. Create Constraints on the Plate(Fixed_2)

g aConstrain 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.

详细的patran实例教程

Step 6. Create Constraints on the Plate (Fixed_2 Cont.)

a. Click under Select Nodes b. Select the node shown in the figure c. Click Add. d. Click OK. e. Click Apply.

a c

b d

eWS2-17

详细的patran实例教程

Step 6. Create Constraints on the Plate (Cont.)

aa. Click on Front view icon from the tool bar. Your model should look like the following:

WS2-18

详细的patran实例教程

Step 7. Defining the Material (mat_1)

aWe will set aluminum as the material of the plate: a. Materials: Create / Isotropic / Manual Input b. Select on Material Name and enter mat_1. c. Select Input Properties. d. Enter: Elastic Modulus: 10e6. Poisson Ratio: 0.3. e. Click OK. f. Click Apply.

c ePAT30

WS2-19

详细的patran实例教程

Step 7. Defining the Material (mat_2)

aWe will set aluminum as the material of the plate: a. Materials: Create / Isotropic / Manual Input b. Select on Material Name and enter mat_2. c. Select Input Properties. d. Enter: Elastic Modulus: 10e8. Poisson Ratio: 0.28. e. Click OK. f. Click Apply.

f WS2-20

详细的patran实例教程

Step 8. Defining the Element Properties (fibre)

a. Properties: Create / 2D / Shell b. Select Property Set Name and enter pro_fibre. c. Select Input Properties. d. Click Mat Prop Name icon e. Choose Mat_1 and enter 1.0 as the Thickness. f. Click OK.

d a e e

WS2-21

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