I am working for the FE model of cracked pipes. I use Hypermesh to mesh the model, but the element can not be set to the C3D20R type. I donnot kwon why it is. So I can use the C3D15. Then I can th following error message:
***NOTE: THE COORDINATES OF NODES WITHIN THE SAME CLUSTER ARE NOT IDENTICAL. THIS IS THE CASE FOR NODES 22 1224
***ERROR: TRIANGLES, TETRAHEDRA, AND WEDGES MAY NOT BE USED IN A CONTOUR INTEGRAL REGION. ELEMENT 960 IS WITHIN A CONTOUR REGION
***WARNING: NO VALID ELEMENTS FOUND IN CONTOUR INTEGRAL REGION
What's wrong?
Thanks a lots for your time.
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hi
Im also having similar problem. did u find the solution?
In reply to hi by Dinesh Kumar
C3D20 and C3D27
Hi,
It's normal, you can use only C3D20 and C3D27 brick elements for the crack front. To mesh the crack tip, you must collapse 2 or 3 nodes to the same location respectively if you use C3D20 or C3D27 elements.
Regards
Stephane