Question in ABAQUS

[hrtuwair]

Hello all,

I am modeling a sandwich composite beam in ABAQUS. The material I am using is linear elastic up to failure. I defined E and v in the material properties but don't know where should I define the ultimate stress and strain (i.e. failure stress and strain). I tried to define them in the plastic model but the resulted force-deflection was nearly linear-perfectly plastic, which was not similar to the experimental result. The experimental result curve of the force-displacement at mid-span was almost linear up to failure which was caused by crushing under the loading point.

Any suggestion please in how to model the ultimate stress and strain of a linear material in ABAQUS?

Your help is appreciated.

Thanks

 

[IceBreakerSours]

If I recall correctly, there is an option available in the pop-up dialog where you entered the modulus and the Poisson's ratio.

Are you new to this forum? If so, please read these FAQ:

http://www.eng-tips.com/faqs.cfm?fid=376

http://www.eng-tips.com/faqs.cfm?fid=1083

 

[hrtuwair]

Thanks for your reply.

Yes, there is a suboption in the Elastic property called stress or Fail strain fail but whenever I used it, it gave me this error "The *fail stress option can only be used with plane stress elements". I think this is because I am using solid elements in the model.

Thanks