WS8-1 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation WORKSHOP 8 Viewing Results for MSC.Nastran Ply PCOMPG Entries Using MSC.Patran v2005

WS8-2 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation

WS8-3 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation n Problem Description u Display MSC.Nastran results for plys, not layers, using MSC.Patran v2005 u The MSC.Nastran ply results are a result of MSC.Nastrans implementation of the PCOMPG bulk data entry u This exercise involves l Creation of a 2D mesh, boundary conditions, and loading l Creation of material properties by playing a session file l Creation of plys and a layup using MSC.Laminate Modeler l From MSC.Patran create a MSC.Nastran bulk data file l Run MSC.Nastran performing a linear static analysis l Directly access the MSC.Nastran ply based stress results l Display the stress results

WS8-4 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Create Geometry Create geometric surfaces in MSC.Patran u Run MSC.Patran v2005 u Under Geometry create a 10 x 10 surface using Create/Surface/XYZ Vector Coordinates List : Origin Coordinates List: [0 0 0] u Divide the surface into 9 surfaces using Edit/Surface/Break, Option: Point The points to be used are to be at [4 0 0], [6 0 0], [0 4 0], [0 6 0] u The resulting surfaces look like the following

WS8-5 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Create Mesh Mesh geometric surfaces in MSC.Patran u Use IsoMesh Quad4 GEL = 0.4 u Connect elements using Equivalence

WS8-6 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Create Boundary Conditions and Forces Create LBCs u Constrain DOF of all nodes on one side (edge) of the model u Constrain DOF 1 – 3 of two centrally located nodes on the opposite side of the model u Load the model around its center with 100 lbf at each point u Load the model on two of its corners opposite the constrained side (edge) with 100 lbf at each corner

WS8-7 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Create Material Properties Create material properties by playing a session file File / Session / Play… Select file named materials.ses Apply Obtain two 2D orthotropic materials The one to be used is named ud_t300_n5208

WS8-8 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Create Plys and Layup Create three plys and one layup This can be done in two different ways u MSC.Laminate Modeler u Other available software that can read MSC.Patran database information, and use the mesh and material properties to create plys and layups The steps necessary to use MSC.Laminate Modeler are shown below

WS8-9 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler From MSC.Patran run MSC.Laminate Modeler

WS8-10 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create one lamina (ply) material u Specify LM_Material Name Use name presented by software u Select Analysis Material Use name created in MSC.Patran, ud_t300_n5208 u Specify Thickness as 0.25 u Use default for Maximum Strain and Warp/Weft Angle u Apply

WS8-11 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create three plys u Ply 1 : area of base material (10 x 10 material); use the entire area – all surfaces Select material MAT_1 Select all surfaces for Select Area Select Point 1 for Start Point for location where to start draping Application Direction specification can be automatic Use two points for Reference Direction (fiber direction for zero Reference Angle) Use default for Reference Angle (fiber direction)

WS8-12 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create three plys (continued) u Ply 1 created

WS8-13 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create three plys (continued) u Ply 2 : area of first strip of material

WS8-14 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create three plys (continued) u Ply 2 created

WS8-15 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create three plys (continued) u Ply 3 : area of second strip of material

WS8-16 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create three plys (continued) u Ply 3 created

WS8-17 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Laminate Modeler Create a layup using the three plys

WS8-18 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Composite Laminate and Element Properties Written to MSC.Patran Composite laminate material and element properties are written to the MSC.Patran database by MSC.Laminate Modeler

WS8-19 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Submit Composite Laminate Model to MSC.Nastran for Execution The model is complete. It has mesh, LBCs, material properties, and element properties. Run MSC.Nastran u First, run using model based on layer u MSC.Nastran PCOMP entries used Uncheck (no)

WS8-20 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Submit Composite Laminate Model to MSC.Nastran for Execution Run MSC.Nastran (continued) u First, run using MSC.Nastran PCOMP entries u Should MSC.Laminate Modeler not be available, an MSC.Nastran bulk date file with PCOMP entries is available This file is named v2k5_simple_model_pcomp.bdf MSC.Nastran can be run using this file

WS8-21 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Nastran Results for PCOMP Displayed Using MSC.Patran v2005 Display the MSC.Nastran stress results u Model based on layer, e.g. Layer 1, not on ply u Model used PCOMP

WS8-22 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Results for MSC.Nastran layers, not plys Layer 2 has data corresponding to Ply 2 and 3 Layer 3 has some of the data corresponding to Ply 3 MSC.Nastran Results for PCOMP Displayed Using MSC.Patran v2005 Layer 1Layer 2Layer 3

WS8-23 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation Submit Composite Laminate Model to MSC.Nastran for Execution Run MSC.Nastran (continued) u Second, run using model based on ply u MSC.Nastran PCOMPG entries used u Should MSC.Laminate Modeler not be available, an MSC.Nastran bulk date file with PCOMPG entries is available This file is named v2k5_simple_model_pcompg. bdf MSC.Nastran can be run using this file Check (yes)

WS8-24 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Nastran Results for PCOMPG Displayed Using MSC.Patran v2005 Display the MSC.Nastran stress results u Model based on ply, e.g. Layer 1001, not on layer Note that MSC.Patran v2005 uses Layer 100n to denote ply n u Model used PCOMPG

WS8-25 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation MSC.Nastran Results for PCOMPG Displayed Using MSC.Patran v2005 Results for MSC.Nastran plys, not layers Layer 100n has data that corresponds only to Ply n Layer 1001 (Ply 1) Layer 1002 (Ply 2) Layer 1003 (Ply 3)

WS8-26 PAT328, Workshop 8, September 2004 Copyright 2004 MSC.Software Corporation