Tonio_CH
Structural
- Jun 16, 2018
- 1
I'm trying to validate results from a custom code written with Matlab by comparing the results with Abaqus. I'm doing an implicit dynamic analysis using direct integration. As done in Abaqus, I'm using the operator defined by Hilber, Hughes, and Taylor (HHT).
My issue is that I have now a Matlab script able to perfectly match the results from Abaqus when I'm using beam or continuum elements (B21 and C3D8R respectively) but not with shells (S4R or S4).
I'm really stuck on this issue and don't understand what causes the results to differ. The time integration should be independent of the element type... Do you have any idea or resources about what could Abaqus do differently in the case of shell elements?
My issue is that I have now a Matlab script able to perfectly match the results from Abaqus when I'm using beam or continuum elements (B21 and C3D8R respectively) but not with shells (S4R or S4).
I'm really stuck on this issue and don't understand what causes the results to differ. The time integration should be independent of the element type... Do you have any idea or resources about what could Abaqus do differently in the case of shell elements?