How can I define failure criterion s such as Tsai-Wu for orthotropic material?


If you want to define failure criterion s for orthotropic material you have to define a orthotropic plastic material in the Material Model (Figure 1).

The yield criterion will be done according the Tsai-Wu criterion (Figure 2). 

This Link provides you with a full set of verification examples to this material model. 

The material model itself is explained in several Knowledge base articles. 


Tsai-Wu yieled criterion orthotropic plastic

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