Topic: Form of shear strain for anisotropic OrthoLE

I need to use an OrthoLE material in the general anisotropic form where the 21 entries of the stiffness matrix are specified directly with a "stiff" entry. Does this material model expect values for for the strain components 4-6 (shear) as engineering strain (tau)? In other words, whould D66 for an isotropic material be E/2/(1+v) or E/(1+v)?

Bailey

Re: Form of shear strain for anisotropic OrthoLE

Hi, OrthoLe is for orthotropic materials, you need to use anisole. The shear components are the engineering one, i.e., strain.at(4) = 2*epsilon_23 etc.

Re: Form of shear strain for anisotropic OrthoLE

Thanks for the info. I was a little confused about the designation. In the Material Library Manual, the syntax for the input record is shown to use the "OrthoLE" designation.

Re: Form of shear strain for anisotropic OrthoLE

This is a mistake in the documentation, thanks for pointing it out, I will fix it.