simlab with optistruct - nonlinear temperature load

hello

i am new user for simlab 2019.2 . And now i want to simulate a nonlinear problem that about 2 combine plate with a thermal load by time varied. For example, all simulated body heated from 300K to 400K in 20s. 

I want to analysis the stress and strain by time varied.

Can i got some tip or material ?

THANKS!