Advanced Numerical Techniques for Strength Prediction of Adhesive Joints under Peel Loadings
Adhesive bonding is becoming more popular for structural applications due to benefits such as more uniform stress distributions and the ease with which diverse materials may be joined. There are many different types of joint architectures, but the most prevalent are single-lap joints (SLJ), double-lap joints, and scarf joints. T-joints are used in aeroplanes to attach stiffeners to the skin and in automobiles to connect the B-pillar and the rocker, although they are rarely examined in the literature. Different forecasting approaches for these joints are available in the literature, however some of them only operate for certain joint types. The performance of the structural adhesive Araldite® 2015 in an aluminium T-joint is quantitatively evaluated using cohesive zone modelling (CZM). Following CZM validation with experimental findings utilising a comparable geometry, this approach was able to be used in a later numerical research. The behaviour of several T-joint geometrical configurations when subjected to peel stresses is then captured using a solely CZM numerical analysis. A parametric research is included in the work, which involves stress analysis in the elastic loading stage and maximum load (Pm) prediction using four geometrical parameters: flat adherend thickness (a), T-element thickness (t), overlap length (l), and T-element radius (r). The examined factors had a substantial influence on Pm, and the CZM approach proved to be a precise method for investigating T joints with precision and accuracy.
Author(s) Details:
J. P. M. Lopes,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
R. D. S. G. Campilho,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.
R. J. B. Rocha,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
I. J. Sanchez-Arce,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal.
Please see the link here: https://stm.bookpi.org/RDST-V7/article/view/7073
