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Thanks for your reply 

Dear Mark Barkey

Thank you so much for your free forum.

I am a mechanical engineer. I am working in a company which produces electric motor. I want to simulate one of our process in our production line in order to check how much stress applied to the part. The process is TIG welding (using Argon gas) in order to weld the diodes of our rectifier (Used in alternator to rectify the output voltage) to the bridge (a flat plate which connects stator coils to the diodes). The diodes first pressed to the heat sink (in order to cool the diodes when alternator is operating) and then the diodes and bridges will be welded. I attached a picture that contains the diode and a part of heat sink in axisymmetric modeling space.
I would be appreciated if you help me to get a true results from ABAQUS. because it is very difficult to explain I have attached the cae and journal file.  please do me a favour and check the file and let me know if I did it right.

Thanks in advance

Kind Regards

Abolfazl Motaharizad