• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2022, Vol. 58 ›› Issue (22): 168-185.doi: 10.3901/JME.2022.22.168

• 材料科学与工程 • 上一篇    下一篇

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自冲铆接头成形及力学性能数值模拟关键技术研究进展

刘洋1,2, 庄蔚敏2, 何晓聪3   

  1. 1. 青岛理工大学机械与汽车工程学院 青岛 266520;
    2. 吉林大学汽车仿真与控制国家重点实验室 长春 130022;
    3. 昆明理工大学机电工程学院 昆明 650550
  • 收稿日期:2021-11-28 修回日期:2022-03-23 出版日期:2022-11-20 发布日期:2023-02-07
  • 通讯作者: 刘洋(通信作者),男,1994年出生,博士,副教授,硕士研究生导师。主要研究方向为车身结构轻量化设计。E-mail:liuyangctgu@126.com
  • 作者简介:庄蔚敏,女,1970年出生,博士,教授,博士研究生导师。主要研究方向为车身结构轻量化设计。E-mail:zhuangwm@jlu.edu.cn;何晓聪,男,1955年出生,博士,教授,博士研究生导师。主要研究方向为新轻型板材连接技术。E-mail:xiaocong_he@126.com
  • 基金资助:
    国家自然科学基金(52272364);山东省自然科学基金(ZR2022QE264)资助项目

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

摘要: 自冲铆接仿真涉及复杂多体接触、材料失效和大变形,连接过程中基板经历复杂应力状态和应变路径,接头的力学性能仿真需要考虑成形历史因素,因此材料本构模型的构建和相关仿真技术影响模拟的准确性。为了推动自冲铆数值模拟技术的发展,综述了自冲铆成形仿真、接头精细模型拉伸仿真和接头简化模型仿真的研究进展及存在的问题。针对自冲铆成形及接头拉伸特性,总结了材料本构模型构建时需要考虑的关键因素。提出了纤维增强复合材料/金属自冲铆接头拉伸仿真建模方法,并通过试验验证了模型的有效性。最后,针对仿真中亟待解决的问题,展望了自冲铆数值模拟的研究方向。对自冲铆接数值模拟研究和应用具有重要的参考价值。

关键词: 自冲铆, 数值模拟, 成形过程, 拉伸失效, 简化模型

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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