Adhesive bonds have become more popular in industrial settings as a result of their numerous benefits over other, more conventional bonding techniques (fastened, welded and riveted joints). Over time, there have become more methods for predicting the strength of adhesive junctions. Although it is rarely researched in relation to bonded joints, the eXtended Finite Element Method (XFEM) is a modern variation of the (Finite Element Method) FEM to simulate damage development in structures. Three T-joints made of an aluminium alloy that have been adhered together are the subject of an experimental and XFEM analysis in this study. With values ranging from 1 to 4 mm, the thickness of the curved adherends (tP2) is examined parametrically. The ability of XFEM prediction was evaluated using various damage start and propagation criteria. It was shown that if the modelling conditions are properly specified, accurate numerical results may be obtained.
Monday, 4 July 2022
Advanced Numerical Techniques to Design T-bonded Joints | Chapter 5 | Technological Innovation in Engineering Research Vol. 4
Tuesday, 7 June 2022
Insight on the use of Cohesive Zone Models for Impact Strength Analysis of Adhesive Joints | Chapter 11 | Technological Innovation in Engineering Research Vol. 3
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.
Please see the link here: https://stm.bookpi.org/TIER-V3/article/view/7068