Hi All,
I'm trying to model a hyper elastic material using the following equation, which is a simplified version of Mooney-Rivlin strain energy density function:
W=c(I-3)
But the problem is that when I am differentiating W with respect to E to obtain the components of my tensor, E disappears...
Dear all,
I have a 3D model created in NASTRAN. The file extension is .nas . I need to import this model into another software (not a kind of FEM packages) for further processing. It suppports OBJ, STL and some other formats but not nas. Now I need to convert this file (mesh) into anyother...