Hi all,
I am trying to model a 3D structural mechanics problem with two separate solid stress-strain modules coupled together at the interfacial boundary through equal displacement boundary condition (i.e. Rx, Ry and Rz for one module is equal to u, v and w of other module) where Ri represents applied displacements in x, y and z directions while u, v and w represents the displacements (the solid stress-strain module always solves for u,v and w in each domain along with the stresses and strains). I think the constraint on the interfacing boundary in this way means that at the interface the displacements must be same. However I cannot acheive convergence at all and the simulations always diverges. I am using default solver settings and unstructured tetrahedral elements mesh. Can some one guide me what should I do.
Regards
I am trying to model a 3D structural mechanics problem with two separate solid stress-strain modules coupled together at the interfacial boundary through equal displacement boundary condition (i.e. Rx, Ry and Rz for one module is equal to u, v and w of other module) where Ri represents applied displacements in x, y and z directions while u, v and w represents the displacements (the solid stress-strain module always solves for u,v and w in each domain along with the stresses and strains). I think the constraint on the interfacing boundary in this way means that at the interface the displacements must be same. However I cannot acheive convergence at all and the simulations always diverges. I am using default solver settings and unstructured tetrahedral elements mesh. Can some one guide me what should I do.
Regards