Density change subroutine 2

[perzo84]

Hi

I have a question about possibilities implement user-material subroutine included changing material density. I have thermal problem where I should assume diffrent density. I would like implement changing density in every material element and watching strain distribution as a result of diffrent density.
Is it possible in Abaqus? If yes which subroutine i should use.

Thanks for help

 

[mrgoldthorpe]

It depends how your density changes. Is it spatially, i.e. according to position of the elements; or does it depend on position, or both?

If it just depends on temperature then you can do this already in the specification of ABAQUS material properties. If it's a little more complicated you could use field variables perhaps:

http://www.eng-tips.com/viewthread.cfm?qid=119056

 

[Noirom84]

I think defining density-temperature curve should do the trick

Regards

arrrrrrrrrrrrr!!!

 

[perzo84]

Tkanks mrgoldthorpe and Noirom84 for advices.