How to get rid of elements with very small, negative or zero dimension
How to get rid of elements with very small, negative or zero dimension
(OP)
Hi There,
I'm trying to use a rigid indenter on a deformable body.
I have gotten an error with my job saying that :
2 elements have very small, negative or zero dimension/s. The elements have been identified in element set ErrElemDimSmallNegZero.
Does anyone have any idea how to get rid of elements with very small, negative or zero dimension?
I'm trying to use a rigid indenter on a deformable body.
I have gotten an error with my job saying that :
2 elements have very small, negative or zero dimension/s. The elements have been identified in element set ErrElemDimSmallNegZero.
Does anyone have any idea how to get rid of elements with very small, negative or zero dimension?





RE: How to get rid of elements with very small, negative or zero dimension
Basically the math breaks down with poor aspect ratios. I have inentionally skewed elements in the mesh generation to accommodate large deformation. Abaqus can also use adaptive remeshing to help with this. Some times simply increasing mesh size especially through the thickness helps.
If you post your model, pictures or provide a more detailed description we will be able to help you more.
I hope this helps.
Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/
RE: How to get rid of elements with very small, negative or zero dimension
I have run into problems with convergence when indenting materials with very different moduli. In your case the rigid surface effectively has infinite stiffness, and may cause you problems.
RE: How to get rid of elements with very small, negative or zero dimension
what, in your opinion, is a reasonable aspect ratio to apply to a highly deformable material in compression? I have seen this technique of using high aspect ratios before but haven't read any indication of how high! Some of my elements have an aspect ratio of 1000, is this completely crazy?
Aisling