吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (3): 726-732.doi: 10.13229/j.cnki.jdxbgxb201503007

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Stress distribution and strength prediction of aluminum-magnesium alloy adhesive-bonded single-lap joints

LAN Feng-chong1, 2, LI Zhong-chao1, 2, ZHOU Yun-jiao1, 2, CHEN Ji-qing1, 2   

  1. 1.School of Mechanical&Automotive Engineering, South China University of Technology, Guangzhou 510640,China;
    2.Guang Dong Provincial Key Laboratory of Automotive Engineering, Guangzhou 510640,China
  • Received:2013-12-25 Online:2015-05-01 Published:2015-05-01

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Abstract: A shear-lag analytical model for aluminum-magnesium alloy single-lap joints was established to predict the joint shear stress. The predicted distribution of shear stress was verified using finite element model. Based on the three dimensional elastic-plastic finite element model, the distributions of shear stress and Von-Mises equivalent stress of the alloy joints in the adhesive layer thickness- and width-direction are analyzed. The effects of various parameters, such as adhesive type, layer thickness and adhesive length, on the bonded structure strength are discussed with experiment and simulation. The results of this study may provide guidance for matching different kinds of metals and adhesives and are helpful in strength prediction and performance optimization of adhesive joints.

Key words: vehicle engineering, aluminum alloy, magnesium alloy, adhesive bonding, single-lap joints, shear-lag analytical model, stress distribution, strength prediction

CLC Number: 

  • U462
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