User login

Navigation

You are here

Negative Eigenvalues due to Mesh Refinement

I will keep my post brief to begin with.

 

The model consists of 7 rectangular interference fits (with 2 of the surfaces in direct interference).  The model appears to be working perfectly fine at simulating the stresses induced due to the fits for a variety of mesh sizes.  Once the mesh sizing of the slave components is reduced to below 0.4 the job fails due to experiencing negative eigenvalues.

 

To summarize - how can mesh refinement cause cause failure in a working model?

Subscribe to Comments for "Negative Eigenvalues due to Mesh Refinement"

More comments

Syndicate

Subscribe to Syndicate