WS2-1 PAT301, Workshop 2, October 2003 WORKSHOP 2 CANTILEVERED PLATE

WS2-2 PAT301, Workshop 2, October 2003

WS2-3 PAT301, Workshop 2, October 2003 Problem Description u This is a simple exercise that involves the simulation of the deformation of a cantilevered plate due to the application of an end load. The exercise involves 1) creation of a flat surface, 2) meshing the surface with quad plate elements, 3) creating a load and constraints, 4) specifying the material as Aluminum and the elements as plate bending and membrane elements, 5) running a linear static simulation, and 6) viewing some results.

WS2-4 PAT301, Workshop 2, October 2003 Suggested Exercise Steps 1. Start MSC.Patran and create a new database cantilevered plate.db. 2. Create geometry of the plate using a surface. 3. Mesh the surface using Quad4 elements. 4. Apply a force at free end of the plate 5. Create a constraint at opposite end from force, fixing all six degrees of freedom. 6. Create an aluminum material with Elastic Modulus of 10e6 and Poisson ratio of Assign aluminum as the property of the plate with a thickness of 0.1 inch. 8. Verify all Loads and BCs to make sure that they are all selected. 9. Run a linear static analysis of the model. 10. Read results by attaching the.xdb file. 11. Plot the results by creating a Quick Plot.

WS2-5 PAT301, Workshop 2, October 2003 Step 1. Create a Database Create a new database. a.File / New. b.Enter cantilevered_plate as the file name. c.Click OK. d.Choose Default Tolerance. e.Select MSC.Nastran as the Analysis Code. f.Select Structural as the Analysis Type. g.Click OK. a b e f d c g

WS2-6 PAT301, Workshop 2, October 2003 Step 2. Create Geometry of the Plate a.Geometry: Create / Surface / XYZ. b.Select on Vector Coordinates List and enter. c.Apply. a b c

WS2-7 PAT301, Workshop 2, October 2003 Step 2. Create Geometry of the Plate (Cont.) a.Select Smooth Shade and Iso 3 View. b.Change back to Wireframe and Front view. a a b b

WS2-8 PAT301, Workshop 2, October 2003 Step 3. Meshing with Quad4 Elements a.Elements: Create / Mesh / Surface. b.Select Elem Shape: Quad. Mesher: IsoMesh. Topology: Quad4. c.Click on Surface List and select Surface 1. d.Apply. a b c d

WS2-9 PAT301, Workshop 2, October 2003 Step 4. Create a Force at Free End A force will be applied to a node at the end of the cantilever plate. a.Loads / BCs: Create / Force / Nodal. b.Select on New Set Name and enter force1. c.Select Input Data. d.Enter on Force. e.OK. f.Click Select Application Region. g.Select FEM on Geometry Filter. a b c d e f g

WS2-10 PAT301, Workshop 2, October 2003 Step 4. Create a Force at Free End (Cont.) a.Click on Select Nodes and select the lower right corner node as shown in the figure. b.Add. c.OK. d.Apply. b c a a

WS2-11 PAT301, Workshop 2, October 2003 Step 5. Create Constraints on the Plate Constrain the other end of the plate, fixing all six degrees of freedom at each node. a.Loads / BCs: Create / Displacements / Nodal. b.Select on New Set Name: and enter displacement_1. c.Select Input Data. d.Enter for Translations and Rotations. e.OK. f.Click on Select Application Region. g.Select Geometry for Geometry Filter. a b c d e f g

WS2-12 PAT301, Workshop 2, October 2003 a.Pick the Curve or Edge icon. b.Select on the edge shown in the figure. c.Add. d.OK. e.Apply. Step 5. Create Constraints on the Plate (Cont.) a b d c

WS2-13 PAT301, Workshop 2, October 2003 Step 5. Create Constraints on the Plate (Cont.) a.Select on Iso3 view from the tool bar. Your model should look like the following.

WS2-14 PAT301, Workshop 2, October 2003 Step 6. Defining the Material We will set aluminum as the material of the plate. a.Materials: Create / Isotropic / Manual Input. b.Select on Material Name and enter aluminum. c.Select Input Properties. d.Enter: Elastic Modulus: 10e6. Poisson Ratio: 0.3. e.OK. f.Apply. a b c d e f

WS2-15 PAT301, Workshop 2, October 2003 Step 7. Defining the Element Properties a.Properties: Create / 2D / Shell. b.Select Property Set Name and enter al-plate. c.Select Input Properties. d.Click Mat Prop Name icon, choose aluminum and enter 0.1 as the Thickness. e.OK. a b c d d d e

WS2-16 PAT301, Workshop 2, October 2003 Step 7. Defining the Element Properties (Cont.) a.Select on Application Region and pick to include all geometry as shown in the figure. b.Add. c.Apply. a b c

WS2-17 PAT301, Workshop 2, October 2003 Step 8. Verify all Loads and BCs for Selection a.Load Cases: Modify. b.Select Default in Select Load Case to Modify. c.Check that all Loads and BCs are selected. d.Cancel. a b c d e

WS2-18 PAT301, Workshop 2, October 2003 Step 9. Analysis Run the analysis of the model. a.Analysis: Analyze / Entire Model / Full Run. b.Select Solution Type. c.Choose LINEAR STATIC for Solution Type. d.OK. e.Apply. a b c d

WS2-19 PAT301, Workshop 2, October 2003 Step 10. Read Results Under Analysis We will attach the.xdb file in order to read the results. a.Analysis: Access Results / Attach XDB / Result Entities. b.Click on Select Results File. c.Select cantilevered_plate.xdb. d.OK. e.Apply. a b c d e

WS2-20 PAT301, Workshop 2, October 2003 Step 11. Results Create a Quick Plot. a.Results: Create / Quick Plot. b.Select Displacement, Translational under Select Deformation Result. c.Apply. a b c

WS2-21 PAT301, Workshop 2, October 2003 Step 11. Results (Cont.) a.Select Stress Tensor under Select Fringe Result. b.Choose X Component in Quantity. c.Apply. d.File / Close. This ends this exercise. a b c

WS2-22 PAT301, Workshop 2, October 2003