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4. Setup (Physics)
Composite Setup
ANSYS Workbench does not have a GUI for composites, thus other measures must be taken. In order to model the laminate plate two command snippets must be inserted within Workbench and a new coordinate system must be introduced
Command Snippet 1
In order to create the first command snippet (Expand) Geometry > (Right Click) Surface Body > Insert > Commands. Many commands are needed to specify the composite material properties of the laminate plate. These commands are listed below in between the two lines of asterisks. Copy and paste the commands below into the Commands snippet, that you just created. Notice, that the purpose of each command is displayed to the right.
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/prep7 !Call the Preprocessor
et,matid,181 !Specify the element type, shell 181
keyopt,matid,3,2 !Use full integration
mpdel,all,matid !Delete all previously assigned material properties
tbdel,all,matid !Delete all previouly assigned tabular data
MP,EX,1,25E6 !Define Young's Modulus: X Direction
MP,EY,1,1E6 !Define Young's Moduls: Y Direction
MP,EZ,1,1E6 !Define Young's Modulus: Z Direction
MP,GXY,1,5E5 !Define Shear Modulus XY
MP,GYZ,1,2E5 !Define Shear Modulus YZ
MP,GXZ,1,5E5 !Define Shear Modulus XZ
MP,PRXY,1,0.25 !Define Major Poisson's ratio XY
MP,PRYZ,1,0.01 !Define Major Poisson's ratio YZ
MP,PRXZ,1,0.25 !Define Majoy Poisson's ration XZ
sect,1,shell !Specify the section type
secdata,.025,matid,0 !Define thickness & orientation for layer 1
secdata,.025,matid,90 !Define thickness & orientation for layer 2
secdata,.025,matid,90 !Define thickness & orientation for layer 3
secdata,.025,matid,0 !Define thickness & orientation for layer 4
secoffset,MID !Define thickness location
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