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To set Pshell-card and 12I/T^3 for laminate.

To set Pshell-card and 12I/T^3 for laminate.

To set Pshell-card and 12I/T^3 for laminate.

(OP)
Hy guys,

I have to set a Pshell-card for laminate ( 8 layer), because I have to set a lamination
parameters in optimization analysis, and I haven't understood the I (the actual bending moment inertia of the shell or bending stiffness parameter) in 12I/T^3 (Bending moment of inertia ratio or Bending stiffness parameter ratio).

Example:
I have a laminate with 8 layers [0,45,-45,90]s, t=1.6mm, t_layer=0.2 mm and b=a=1 cm:
12I/T^3 in Pshell-card??


Thank you
Domenico
Munich

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