WARNING [4025]: MAXIMIUM ITERATION REACHED IN RETURN MAPPING, MATERIAL ID=#, ELEMENT ID=#, INTEGRATION POINT=#

Cause

This warning is generated when the stress condition, which coincides with the yield curve of the material data provided in an elasto-plastic model, cannot be calculated.  It usually occurs when the displacement increment is large or the hardening curve zone of the material data is complex.

Analysis Type

Nonlinear analysis   

Related Menu

Mesh >> Prop./CSys./Func. >> Material >> Isotropic ...

Remedy

1. Increase the number of load increments.

2. Simplify the curve if a complex hardening curve has been defined.

3. Remove the softening zone of the material model, or use a 2nd-order curve in a Bi-Linear form.

4. If the problem persists, convert the model into a perfect plastic model.