Elmer Discussion Forum

There seems to be a bug or a limitation in the code. Applied forces, both body and boundary forces are ignored in 3D when using UMAT. You can use enforced displacements and get results.
Applied forces, both body and boundary, do work in 2D.
I realized that all of my past case and development had been in 2D.
All of the Elmer test case have been in 2D.

Attached is a simple case to demonstrate, that applied forces are ignored when using UMAT with 3D.

The sif has

Nonlinear System Convergence Tolerance = 1000

and therefore the nonlinear iteration loop is terminated without solving linear systems. I gave much smaller value and got results also for given external loads.

-- Mika

You are correct sir. Thanks again.