Problems with Abaqus 6.3
Problems with Abaqus 6.3
(OP)
Hi,
I was working with Abaqus 6.1 to model a plane axissymetric visco-hyperelastic membrane subjected to an internal pressure. It was OK, but when I changed to the new version of Abaqus(6.3), I have problems with overconstrains in many internal nodes. We are working in an Academic licence, so we have not the right to a full support. Could any one give an idea to solve this problem? Have this problem happened with anyone?
Thanks, Cristina
I was working with Abaqus 6.1 to model a plane axissymetric visco-hyperelastic membrane subjected to an internal pressure. It was OK, but when I changed to the new version of Abaqus(6.3), I have problems with overconstrains in many internal nodes. We are working in an Academic licence, so we have not the right to a full support. Could any one give an idea to solve this problem? Have this problem happened with anyone?
Thanks, Cristina





RE: Problems with Abaqus 6.3
RE: Problems with Abaqus 6.3
Thank you very much for you help, but I think I didn't explain my problem well.
My model is very simple: a plane rubber disc subjected to a pressure, pinned in it edges. I'm not using contact elements and tied nodes. I use a sweep discretization, with 3 and 4-nodes membrane elements.
The model works well when I use the hyperelastic properties (Ogden funtion) only , but when I include viscoelastic properties all internal nodes get overconstrainted, neither in the *static step, nor the *visco. How can I understand it????
Thanks, Cristina
RE: Problems with Abaqus 6.3