Dear Dr. Ivar,
I want to use a nonlinear Elastic relationship called "Duncan-Chang Model " for building a model about soil deformation. I use "Linear Elastic Material Model", and fill the parameters E and nu, of cause the E and nu, which now are fuctions about principal stresses (solid.sp1 and solid sp3). and it doesn't work with err "Circular variable dependency detected."
Are there some solutions that can be used to solve my problem ? and what technique need to be used in this problem?thanks a lot.
I want to use a nonlinear Elastic relationship called "Duncan-Chang Model " for building a model about soil deformation. I use "Linear Elastic Material Model", and fill the parameters E and nu, of cause the E and nu, which now are fuctions about principal stresses (solid.sp1 and solid sp3). and it doesn't work with err "Circular variable dependency detected."
Are there some solutions that can be used to solve my problem ? and what technique need to be used in this problem?thanks a lot.