a comparison study on various finite element models of riveted lap joint by the use of dynamic model updating

Various models have been proposed in literature so far to simulate the behavior of riveted structures. in order to find the most accurate numerical method in modeling the dynamic behavior of riveted structures, a comparison study is performed on several of these models in this research. for this purpose, experimental modal analysis tests are conducted on a riveted plate to verify the efficacy of the numerical models. moreover, finite element model updating is used to reduce the difference between analytical and experimental results. first, the material properties of plates are optimized using the experimental results obtained from modal tests of a simple plate. next, optimization is performed for the physical properties of the rivet. in the end, it is concluded the fastener model proposed by rutman can bring about the most accurate results when it is used in combination with solid plates and gap elements in the contact region.