When creating adhesive structures, it is essential to accurately predict their strength and fracture characteristics (critical strain energy release rate in tension, GIC, and shear, GIIC). Determining how strain energy release rates in tension (GI) and shear (GII) compare to different crack propagation criteria or fracture envelopes is vital in order to comprehend how fracture manifests itself in these conditions. Using single-lap joints (SLJ) and double-lap joints (DLJ) with aluminium adherends and bonded with three different adhesives, the main goal of this chapter is to confirm, using cohesive zone models (CZM), which is the power parameter () that best suits the energetic crack propagation criterion for CZM modelling. This is accomplished by running SLJ and DLJ numerical simulations and comparing the maximum load (Pm) to experiments. The energy criterion from the experimental investigation led to numerical results that were equivalent for Araldite® AV138 and Araldite® 2015, validating the fracture envelopes. Results from the Sikaforce® 7752 were slightly skewed as a result of CZM law form difficulties.
Author(s) Details:
J. P. S. M. B. Ribeiro,
Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto
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.
R. J. B. Rocha,
INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.
Please see the link here: https://stm.bookpi.org/COSTR-V1/article/view/7943
No comments:
Post a Comment