MATERIAL CURVE

Altair Forum User

hi 

 

what is the reason in elastic-plastic material like MAT36 we should use the effective stress-strain curve   

 

thanks

Altair Forum User

Hi shrinaath

Law 36 in Radioss is the non linear material ,and the  functions are for the work-hardening portion of the stress-strain curve (for example, plastic strain vs. stress) for different strain rates

 

Refer the ebook from below location for more details 

https://altairuniversity.com/free-ebooks-2/free-ebook-crash-analysis-with-radioss-a-study-guide/