Piecewise Linear Material (Mat Law 36)

Altair Forum User

Hi there,

 

When defining the stress-strain curve for the material (/MAT36), should it be used the true curve or the engineering one?

 

Thanks

Rahul Rajan_21763

Hi,

In RADIOSS, the output are always are in terms of true values ( True stress and True plastic strain)

Equivalent plastic strain= (Total Strain  - Elastic Strain)

Regards

Rahul R