Implicit Contact Problem
Implicit Contact Problem
(OP)
I am currently working on a complex contact problem involving 10 interlocking components made of 2 simple isotropic polymers. I have already set up the problem using ABAQUS explicit and general contact interactions. Frictionless contact and mass scaling was used, but the explicit problem still took extremely long to run.
I keep trying to set up the problem to use Abaqus implicit. Initially I had errors about elements with zero or negative volume, but this was alleviated by eliminating overclosure adjustments. Now I am getting frequent errors about slave surfaces interacting with each other. In addition, the solution never converges. Can anyone help me out here? Should I be using exponential overclosure-pressure?
I keep trying to set up the problem to use Abaqus implicit. Initially I had errors about elements with zero or negative volume, but this was alleviated by eliminating overclosure adjustments. Now I am getting frequent errors about slave surfaces interacting with each other. In addition, the solution never converges. Can anyone help me out here? Should I be using exponential overclosure-pressure?





RE: Implicit Contact Problem
Rob Stupplebeen
RE: Implicit Contact Problem
When I try to run this system in explicit, it fails several hours in complaining about wave speed and element deformation. As I stated earlier about the implicit model,I initially had errors about elements with zero or negative volume, but this was alleviated by eliminating overclosure adjustments. Now I am getting frequent errors about slave surfaces interacting with each other. In addition, the solution never converges.
RE: Implicit Contact Problem