boraborazz
Guest
Good morning.
I have been struggling with a pattern for several days that I can't achieve.
I have already developed the model with the czm technique (cohesive zone modeling) and now I am trying with the vcct (virtual crack closure technique) in patran nastran, always using the sol400.
I have to replicate the dcb test and want to use the vcct technique.
I can't understand what I'm wrong with the model, the clique should propagate, I think once the deformation is applied, but that doesn't happen.
probably wrong in the "loads" menu to define the "crack (vcct)" or "contact". I created two contacts between the top of the mesh and the bottom one with the glue mode, leaving a free element. vcct I defined it in the node between the free element and the glued one between the two surfaces. I left an initial space to simulate the clique already present in the material.
or maybe I'm wrong with something else.
I leave the .bdf file in case you need it.
Do you have ideas about how to solve?
otherwise, do you have any suggestions on how to simulate in patran, with vcct technique, delamination for the dcb test?
Thank you very much
I have been struggling with a pattern for several days that I can't achieve.
I have already developed the model with the czm technique (cohesive zone modeling) and now I am trying with the vcct (virtual crack closure technique) in patran nastran, always using the sol400.
I have to replicate the dcb test and want to use the vcct technique.
I can't understand what I'm wrong with the model, the clique should propagate, I think once the deformation is applied, but that doesn't happen.
probably wrong in the "loads" menu to define the "crack (vcct)" or "contact". I created two contacts between the top of the mesh and the bottom one with the glue mode, leaving a free element. vcct I defined it in the node between the free element and the glued one between the two surfaces. I left an initial space to simulate the clique already present in the material.
or maybe I'm wrong with something else.
I leave the .bdf file in case you need it.
Do you have ideas about how to solve?
otherwise, do you have any suggestions on how to simulate in patran, with vcct technique, delamination for the dcb test?
Thank you very much