In case of anisotropic material stiffness and the directional dependent Tsai-Wu transversely isotropic Failure Criterion with widely spaced values, the optimisation may not give stable results. This occurs if the default Failure Criterion is used with huge material property differences for the in-plane directions and the build direction, as well for the maximum allowable tensile and compression strength.
For a better result, the Tsai-Wu 3D Orthotropic Failure Criterion should be used. This Failure Criterion can be activated with the Advanced User Settings. Therefore, all required material information need to be added.
Advanced User Settings Commands:
material.Plastic.failureCriterionName= WuforPlastic failureCriterion.WuforPlastic.failureCriterion= TsaiWuOrthotropic failureCriterion.WuforPlastic.x_t= 6.1e+07 failureCriterion.WuforPlastic.x_c= 2.54e+08 failureCriterion.WuforPlastic.y_t= 2.46e+09 failureCriterion.WuforPlastic.y_c= 1.49e+09 failureCriterion.WuforPlastic.z_t= 2.46e+09 failureCriterion.WuforPlastic.z_c= 1.49e+09 failureCriterion.WuforPlastic.s_xy= 2.62e+07 failureCriterion.WuforPlastic.s_yz= 5.24e+07 failureCriterion.WuforPlastic.s_zx= 2.62e+07 failureCriterion.WuforPlastic.f_xy= -0.5 failureCriterion.WuforPlastic.f_yz= -0.5 failureCriterion.WuforPlastic.f_zx= -0.5 |
Tsai-Wu 3D Orthotropic Failure Critertion:
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