I am new to Comsol I am trying to simulate a time dependent spark plasma sintering process using the Joules heating and thermal expansion in structural mechanics multi-physics module. I have a problem in removing the thermal insulation , free constraints in the model. Due to this I am not able to get correct results. In reality maximum temperature will occur between die-specimen, punch-specimen interface, but here I am getting maximum tempertaure between small spacer-punch interface. Can anyone help out in solving this I have attached the model and simulation file.
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