Orthotropic material and its stiffness matrix
Orthotropic material and its stiffness matrix
(OP)
I'm implementing an elastic orthotropic material. When checking the compliance matrix, it is not positive definite (but it is symmetric). Is this to be expected in some cases? If so, when?
Thanks.
Thanks.





RE: Orthotropic material and its stiffness matrix
Positive Definite compliance matrix is a necessary condition for maintaining positive strain energy.
RE: Orthotropic material and its stiffness matrix
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RE: Orthotropic material and its stiffness matrix