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Density change subroutine
2

Density change subroutine

Density change subroutine

(OP)
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  

RE: Density change subroutine

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

RE: Density change subroutine

I think defining density-temperature curve should do the trick smile

Regards

arrrrrrrrrrrrr!!!

RE: Density change subroutine

(OP)
Tkanks mrgoldthorpe and Noirom84 for advices. smile

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