Value for strain hardening ratio?

Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

Moderators: silvia, selimgunay, Moderators

Post Reply
lkang6
Posts: 36
Joined: Mon Nov 15, 2010 7:09 pm
Location: GEORGIA INSTITUTE OF TECHNOLOGY

Value for strain hardening ratio?

Post by lkang6 »

Hi Vesna,

I have a question. I always give strain hardening value 0.001~0.01 to steel. And I found out that this value can affect the behavior of the element largely. Then, could you please tell me what is an appropriate value for strain hardening ratio? Is there any paper on this? I searched for a long time, but I can not find any discussion on this.

Thanks a lot!
vesna
Posts: 3033
Joined: Tue May 23, 2006 11:23 am
Location: UC Berkeley

Re: Value for strain hardening ratio?

Post by vesna »

Yes, the range you are considering for strain hardening is pretty big and can greatly influence the response of the element. In few calibrations based on experimental results I saw b=0.003 and this is the value I use for modeling steel elements.
pouriakianzad
Posts: 1
Joined: Tue Jul 21, 2015 5:52 am
Location: Khaje Nasir Toosi University of Technology

Re: Value for strain hardening ratio?

Post by pouriakianzad »

Hi
I want a exactly curve of stress strain of steel 37 for modeling by ElasticMultiLinear material( considering hardening effect) . can you help for these values?
Post Reply