12 Jun Quasi-Static Transient Analysis
A quasi-static transient analysis is performed if the load changes with time, but if this change is slow compared to the period (https://fea-solutions.co.uk/frequency-and-period/) of the first natural frequency (https://fea-solutions.co.uk/modal-analysis/) of the structure (https://fea-solutions.co.uk/static-vs-dynamic-analysis/).
An example where a quasi-static transient analysis is appropriate would be stresses due to thermal expansion during heat-up of a tubular heat exchanger. In this case, the non-uniform temperature field on the radiator changes with time, and hence the resulting stresses change with time. The change is however slow, so that inertia effects, calculated as mass x acceleration, do not have to be considered.
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