Strength and interface failure mechanism of adhesive joints |
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| Affiliation: | 1. Mechanical Engineering Laboratory, National Engineering School of Monastir, Monastir University, Monastir, Tunisia;2. Faculdade de Engenharia, Departamento de Engenharia Mecânica, Universidade do Porto, Porto, Portugal;3. Automotive Industry, ICAR, Sousse, Tunisia;1. Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria 3800, Australia;2. Aerospace Division, Defence Science and Technology Group, 506 Lorimer Street, Fishermans Bend, Victoria 3207, Australia;1. Department of Mechanics and Engineering Science, College of Engineering, BIC-ESAT, Peking University, Beijing, 100871, China;2. School of Civil Engineering, Hefei University of Technology, Hefei, 230009, China |
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| Abstract: | Adhesive joints have a wide range of applications in the civil engineering, automotive and aircraft industries. In the present research, we use the finite element method to systematically study the overall strength and interface failure mechanism of single lap joints, which are subjected to tensile loading, focusing on the effects of various system parameters including fracture energy of the adhesive layer, overlap length and adhesive layer thickness on the load-bearing capability of the joints. The results show that the overlap length and the adhesive fracture energy have combined influences on the load-bearing capability. On the other hand, a preliminary damage analysis of the adhesive layer is carried out, considering the situations when the loads arrive to the peak values. Furthermore, the interface behavior is investigated, including the interface stress analysis and interface slip. The rotation of the joint during loading and its influence factors are studied as well. Obtained results suggest that the interface stress distributions are related to the slip and the rotation angle. |
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