We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Influence of mode mixity and loading conditions on the fatigue crack growth behaviour of an epoxy adhesive.
- Authors
Monteiro, Joao; Akhavan‐Safar, Alireza; Carbas, Ricardo; Marques, Eduardo; Goyal, Rakesh; El‐zein, Mohamad; Silva, Lucas F.M.
- Abstract
Adhesive joints usually experience mixed mode and mostly cyclic stresses conditions during their service life. The aim of the current research is to investigate the fatigue behaviour of a structural epoxy adhesive. Pure modes I and II and mixed mode tests were carried out to study the fracture and fatigue crack growth (FCG) behaviour of the adhesive. Compliance‐based beam method was considered for experimental fracture energy measurement. The effects of load level and load ratio on the mode I FCG behaviour and Paris law parameters were also investigated. Result showed that the effect of load level on fatigue crack propagation is more pronounced for lower R ratios. It was found that when the crack faces are closer during the unloading process, the difference between the R2 and Gmin/Gmax is higher. Some possibilities are the crack closure phenomenon, difficulty in measuring the Gmin, and the employed data reduction approach.
- Subjects
PARIS (France); FATIGUE crack growth; ADHESIVE joints; CRACK closure; FATIGUE cracks; EPOXY resins; ADHESIVES
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2020, Vol 43, Issue 2, p308
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.13125