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An innovative hinge structure of a flip-cover mobile phone is currently under
development, and the corresponding fatigue life assessment is therefore
anticipated. A finite element analysis is carried out to investigate the response of
the hinge under the cyclic loading conditions. The critical plane approach, linking
to the baseline measurements, is adopted to construct relationships between
damage parameters and fatigue lives. The submodelling technique is also
implemented into the analysis for the detailed examination of the critical region.
Furthermore a finite volume weighted averaging scheme is used for the
reasonable life prediction here. The damage criterion proposed by Socie et al.
might give fair fatigue life estimations