Insight on the use of Cohesive Zone Models for Impact Strength Analysis of Adhesive Joints
Adhesive bonding are becoming more popular as a substitute for technical applications. The growing popularity of this sort of joining necessitates the development of tools to aid in the design process. Cohesive zone models (CZM), which combine strength and toughness characteristics to forecast the performance of adhesive joints, are one of the most effective damage criteria or models linked with the Finite Element Method. Adhesive joints are subjected to impact loads in various practical circumstances, such as car wrecks. The main purpose of this study is to see how cohesive factors affect the strength of single-lap joints (SLJ) that are subjected to impact stresses. The impact of the cohesive properties was studied by changing each of these qualities while leaving the others constant. To investigate the influence of different adhesive qualities, the Araldite® AV138 (high stiffness) and Nagase Chemtex® XNR6852 E-2 (high toughness) adhesives were used. CZM correctly predicts joint impact strength, and CZM settings have a considerable influence on joint strength, according to the findings.
D. M. S. R. B. Machado,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
R. D. S. G. Campilho,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal and INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.
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