ABAQUS Cantilever Beam Bending Simulation using B8 elements
ABAQUS Cantilever Beam Bending Simulation using B8 elements
(OP)
I am trying to verify my finite element analysis codes written in MATLAB with commercial code ABAQUS. I am using a simple cantilever beam bending problem using B8 elements. I am pretty sure my MATLAB code is accurate but the displacements from it don't match the ones from ABAQUS. Does ABAQUS use some kind of tricks to make the B8 element better in bending? This is bugging me for a long time. Can someone help? My ABAQUS input file is attached.





RE: ABAQUS Cantilever Beam Bending Simulation using B8 elements
Besides, you used "linear" hex elements, which is to say that displacement can only vary linearly in one such element => strain (spatial derivative of displacement) must be constant in one such element => stress must remain constant in one such element. Quad hex elements allow strain to vary linearly.
Use the ABAQUS documentation for details.
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083
RE: ABAQUS Cantilever Beam Bending Simulation using B8 elements
RE: ABAQUS Cantilever Beam Bending Simulation using B8 elements
http://www.eng-tips.com/faqs.cfm?fid=376
http://www.eng-tips.com/faqs.cfm?fid=1083