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FE optimization help

Submitted by David A Bennett on
Forums
Computational Mechanics Forum

Hey guys (and gals). I have been working on a FEA. The problem I have been having is that I cannot find a FE package that allows for optimization to be performed. What I am trying to do is create a FE geometry parametrically and have the software change the specified parameters accordingly. I am currently trying Abaqus and I am unsure of how to assemble multiple objects into one geometry (say an extruded rectangle and cylinder). I am very new to using abaqus so I'm not sure what all it can do. I'm more familar with Comsol and Ansys. Thanks for any help.

Positions: Post doctoral and doctoral

Submitted by zikry on
job
experimental mechanics
Computational Modeling
multiscale techniques

Ph.D and post-doctoral positions available immediately in Professor Zikry's rsearch group at North Carolina State University, Raleigh, NC.

Currently, we have openings with researchers with backgrounds in computational solid mechanics, atomistic and molecular modeling, multiscale techniques, and fracture mechanics. We also have openings in experimental mechanics.

I can be contacted at zikry [at] ncsu.edu. Please forward latest cv.

Thanks

How to deal with the constitutive integration in plasticity?

Submitted by Bin Ji on
Forums
Ask iMechanica

Plastic theory has been developed systematically. As a beginner, however, some questions have confused me for a long time.

As is well known, the constitutive integration must be deal with in the flow theory. Instead of the explicit algorithm such as M-iteration, the implicit one - stress update algorithm - has been attractive for its simplicity, the most famous of which is rp (return mapping) for J2 flow theory.

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