Apply a temperature load

[hawkin]

I applied a mechanical load to a FE model and the stress distribution was obtained. Is it possible to assign the model a temperature load, which is proportional to the stresses I've gotten?

Thanks for your help!

 

[xerf]

Do you mean that you want the temperature field changing during the analysis as function of stress field ?

 

[hawkin]

I want to analysis a FE model using two different load conditions, respectively.

Firstly, I carry out the FEM computation with a mechanical loading. As a result of this calculation I obtain the stresses (Mises stesses).

Then I need to set the computed stresses formally equal to a fictitious temperature distribution and do a thermal analysis. is there any good way to apply this kind of temperature load?

I hope I have explained my question clearly, and thanks very much.

 

[kotawsu]

If you need the thermal stress then you have to apply temperature as well as mechanical loading. You can either carry out a sequentially coupled ananlysis or thermo-coupled analysis in ABAQUS. But its not possible to get thermal stress unless you apply some mechanical constraints to your thermal model.

 

[corus]

For a simple case of a bar in tension, the equivalent thermal loading would give a stress of E.alpha.T with the bar fully restrained. You can work out T from that.

corus