•This appendix is intended for users who want
to obtain a better understanding of element technology options used in
structural nonlinear simulations.
•
•With the variety of technologies available
in many elements, choosing the best element formulation option to solve
problems most efficiently can be challenging.
•
•Fortunately, Workbench Mechanical will
automatically activate the best options based on the analysis challenges
present in the model.
•However, the analyst of nonlinear problems
still has decisions to make. For
example, since large nonlinear models can be very challenging and
computationally expensive, it is sometimes advantageous to drop element mid-side
nodes.
–Advantages to lower
order elements:
•Runtime Efficiency
•Computational Stability
–Disadvantage to
lower order elements:
•Shear Locking with conventional, displacement based
formulations in bending dominated problems.
–To address this
challenge, Simulation automatically enhances the lower order elements with a
more robust technology.
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