This is a test recommended by the National Agency for Finite Element Methods and Standards (U.K.): Test LE6 from NAFEMS Publication TNSB, Rev. 3, “The Standard NAFEMS Benchmarks,” October 1990.
Target solution: Maximum principal stress = 0.802 MPa on the lower surface at point E.
No matter if I use full or reduced integration, I’m not obtaining the expected result in this benchmark. Result is really bad by one order of magnitude difference. ¿Could someone help me to find what could be wrong here.?
I don’t have access to the original NAFEMS document but there might be a mistake with the pressure magnitude here. Abaqus documentation mentions 7 kPa but there’s 0.7e3 Pa = 0.7 kPa in the input files.
Nice. That’s the problem. Thanks both for the help.
I also don’t have the original document. I’m just looking at comercial software validation documents as reference. @FEAnalyst You have also discover an unknown Mecway folder to me!!. Nice to see someone else worked all those benchmarks too. I’m doing them all. At this point only one remains not clear to me but unfortunately it’s not contained in that list. I have also seen other comercial solvers strugling with it so now I suspect there could be some wrong initial data too.(LE9: Axisymmetric branched shell under pressure)
I’m Updating the inp with the correct one.