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Boundary conditions on 2D axis-symmteric model in Thermal stressProblem

Posted Mar 30, 2014, 9:58 p.m. EDT Geometry, Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers, Structural Mechanics 0 Replies

Nazir Hina
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I am imposing the very high temperature field i.e. T(r,z) on 2D axis-symmetric (cylinder) model in order to calculate stresses/strains. As temperature is high enough to yield the material , so I am expecting plastic strain.

Surprisingly, If I use only symmetry boundary conditions (on center and bottom edge) there is no plastic strains!

If, I try to constrain the bottom edge, it causes a large error and convergence issues.

Any suggestion please. I wondering why symmetry boundary conditions are causing no plastic strains!

Thanks,
Hina
0 Replies Last Post Mar 30, 2014, 9:58 p.m. EDT
COMSOL Moderator

Hello Nazir Hina

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