15.0 - Body Coupling

Some computations involving different physical processes are coupled, meaning that the body attributes associated with one physical process must be updated by a separate process. This may happen in PFC when both the thermal and mechanical processes are active. For instance, if the thermal-expansion coefficient of a thermal body is nonzero, the body may expand or contract depending on its temperature increment. This volumetric change directly impacts the mechanical response of the system (see the “PFC Thermal Formulation” section for further details).

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