9 mm SPR을 사용한 알루미늄 이종소재 3중 접합에 대한 십자인장 시험모사를 통한 강도 예측모델 연구

The automotive industry is researching ways to lighten vehicle bodies to improve fuel efficiency. Mechanical joining of dissimilar materials through self-piercing rivet (SPR) is used as an effective weight reduction method. Therefore, the use of SPR triple joint of dissimilar materials is increasing. However, research on SPR triple joints and joint performance evaluation is lacking. In this study, the cross-tension strength of aluminum triple joint using 9 mm SPR was investigated. A finite element analysis program LS-DYNA was used to analyze the causes of joint failure of aluminum alloy joints by simulating a cross-tension test. This study is expected to predict the joint performance of SPR in the early stage of development. KCI Citation Count: 0