Modeling Thermal Contact between PA 66 and Steel

Hi Abaqus users,

I am modeling a thermo mechanical fatigue for PA 66.

There is a contact between my steel test rig and the PA 66 test specimen for which i could not understand how to model the contact conductance as I do not have any relation to finding the conductivity of the contact.

 

Please can someone tell me how to find the value of thermal contact between the two surfaces in contact?

I know I can use GAPCON but what values to use is of concern to me.

 

Please can someone helpAbaquscontact conductanceGAPCON