I want to use C3D8R element in Step 2 (as Step 1 is Initial) for dynamic analysis with a certain set of material properties (Concrete and steel). The result of step 2 will propagate to Step 3 in which I will be required to use DC3D8 element with another set of material properties (degraded concrete and steel from Step 2) for implicit heat transfer analysis. Can anyone help me how to proceed?