how to create a composite material with only E1, E2, v12 and G12 property?

- August 17, 2023 at 10:27 am
  
  Chin-Hung Lai
  Subscriber
  
  Because in CLT plane element don't consider the direction of Z axial. I used ACP and transform to shell element, but if i change the value of G23, the result won't be the same. but i should be the same. why? can anyone help me? thanks.
- August 22, 2023 at 11:48 pm
  
  Reno Genest
  Ansys Employee
  
  Hello,
  The out-of-plane shear stiffnesses G31 and G23 are involved via shear correction factors:
  
  [46] P. Isaksson, A. Krusper, and P.A. Gradin. Shear Correction Factors for Corrugated Core Structures. Composite Structures. Vol. 80. pp. 123-130. 2007.
  
  The above is taken from the Ansys documentation:
  https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v232/en/acp_ug/Out-of-Plane_Shear_Moduli_and_CF.html
  
  Reno.

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