Here a rectangular local co-ordinate system is defined using the *ORIENTATION statement for each of the plies. The Z axis is the normal axis to the rectangular plate. The ply directions are specified as a rotation about the normal for all 3 plies.
The rest of the data required to completely define the shell properties are given below :
The following figure illustrates a PLY direction of -30 degrees ( anti-clockwise about normal is taken as positive).
The rest of the data required to completely define the shell properties are given below :
The following figure illustrates a PLY direction of -30 degrees ( anti-clockwise about normal is taken as positive).
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