A Comparison Study on Various Finite Element Models of Riveted Lap Joint by the Use of Dynamic Model Updating

Document Type: Original Article

Authors

1 Aerospace Engineering Department, Shahid Sattari Aeronautical University of Science and Technology, Azadi Sq., Tehran, Iran.

2 Department of Aerospace Engineering, Shahid Sattari Aeronautical University of Science and Technology, Tehran , Iran

Abstract

Till now, various models have been proposed in literature to simulate the behavior of riveted structures. In order to find the most accurate analytical 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 analytical 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, the optimization is performed for the physical properties of rivet. At the end, it is concluded that 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.

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Main Subjects


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