I want to be able to measure the strain response in a material composed of 2 lamina, bottom one (0) top one half (0) half (90), and see the differences in the unidirectional versus the bidirectional area.
I've been trying with the Lamina function, and using a negative pressure at one edge where I want the load, and bounding the other edge with boundary conditions. The error it gives me is (Lamina can only be used with plane stress elements).
How can I get past this error? Do I need to use a different function?