Snap fit is a common assembly method that joins parts together through inter-lock features. There are usually three types of snap fits: annular, cantilever, and torsional. Depends on the specific application, there are many structure risks that are associated with the snap fit design such as excess/too small assembly force, permanent deformation, and lack of interlocking. FEA analysis provides a quick way to evaluate the assembly and disassembly process, and provide a comprehensive assessment of the design.
