• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2022, Vol. 58 ›› Issue (22): 168-185.doi: 10.3901/JME.2022.22.168

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Research Progress on Key Technology of Numerical Simulation of Forming Process and Mechanical Properties of Self-piercing Riveted Joint

LIU Yang1,2, ZHUANG Yu-min2, HE Xiao-cong3   

  1. 1. School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520;
    2. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022;
    3. Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650550
  • Received:2021-11-28 Revised:2022-03-23 Online:2022-11-20 Published:2023-02-07

Abstract: The simulation of self-piercing riveting(SPR) involves complex multi-part contacts, material failure and large deformation.The substrate undergoes complex stress states and strain path in the joining process. The simulation of mechanical properties of joints needs to consider the factors of forming history. Therefore, the construction of material constitutive model and related simulation technology will affect the accuracy of simulation. To promote the development of numerical simulation technology of SPR, the research progress and existing problems of SPR process simulation, tensile simulation of joint refined model and simplified model of joint are summarized. Based on the characteristics of forming and tensile process of SPR joint, the key factors to be considered in the construction of material constitutive model are summarized. The tensile simulation modeling method of self-piercing riveted joint in fiber reinforced composite and metal is proposed, and the model is verified by experiment results. Finally, aiming at the problems to be solved in the simulation, the research direction of numerical simulation of SPR is prospected to provide reference for the following research. It has important reference value for the research and application of numerical simulation of SPR.

Key words: self-piercing riveting, numerical simulation, forming process, tensile failure, simplified model

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