A coupled thermal-stress step neglects inertia effects, and it can model steady-state or transient responses. Thermal ResponseIn a steady-state, coupled, thermal-stress step, the thermal response does not depend on time. In a transient, coupled, thermal-stress step, the thermal response depends on time. Time IncrementationThe type of time incrementation determines how a coupled thermal-stress step progresses. Two types of time incrementation are available: automatic incrementation and fixed incrementation. In automatic incrementation, the solvers increment an analysis using some initial time incrementation parameters that you specify. In fixed incrementation, you specify a fixed time increment size to use throughout the analysis. CreepA coupled thermal-stress step can account for creep (that is, the viscoelastic response). The creep depends on the model's material properties. The solvers calculate creep by either implicit integration or explicit integration. |