吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (3): 864-871.doi: 10.13229/j.cnki.jdxbgxb201503026

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Simulation and calculation methods for clinched joint strength

YANG Hui-yan, HE Xiao-cong, ZHOU Sen   

  1. Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China
  • Received:2013-08-23 Online:2015-05-01 Published:2015-05-01

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Abstract: A finite element (FE) model and a theoretical calculation method for the tensile-shear strength of clinched joint were proposed. First, a 2D model for clinching process was established in ANSYS to simulate the performing process and analyze the metal flow law; the simulation results are in accord with the test results. Then, a 3D model for tensile-shear process was constructed from the results of the 2D model; the load-displacement curve and the failure mode were obtained. The simulation results are in good agreement with test results with an error of 3.4%. Finally, theoretical formulas for the calculation of the joint strength was proposed based on the two failure modes in tensile-shear tests, which are neck-fracture failure mode and button separation mode. The formulas were verified by the tests of twelve types of clinched joints. Results show that the calculation error of the joint strength is 8.9%.

Key words: engineering mechanics, clinching, tensile-shear strength, calculating formula, simulation, microscopic analysis

CLC Number: 

  • TG4
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