Multi-material adhesively bonded structures: Characterisation and modelling of their rate-dependent performance. (15th August 2020)

• Record Type: Journal Article
• Authors: Lißner, M.; Erice, B.; Alabort, E.; Thomson, D.; Cui, H.; Kaboglu, C.; Blackman, B.R.K.; Gude, M.; Petrinic, N.
• Is Part Of: Composites. Number 195(2020)
• Publication Date: 2020-08-15
• Subjects: Adhesive joints -- Dynamic loading -- Cohesive zone modelling -- Experimental mechanics -- Impact behaviour -- Composite -- Multi-materials; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2020.108077
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: The rate-dependent failure response of multi-material adhesive joints for three deformation modes is investigated. A combination of carbon fibre reinforced polymers (CFRP) and titanium alloy Ti-6Al-4V is employed. The experiments provide important information about the failure sequence of a multi-material adhesive joints, which depends upon the loading rate regime. This is the first time that dynamic fracture mechanics experiments are performed in multi-material adhesive structures. The observed experimental results suggest a rate-dependent failure sequence for mode I dominated fracture. Simulations of the experiments are used to predict and rationalise the failure performance of the multi-material adhesive joint. The numerical analysis highlighted the importance of the individual knowledge of the rate-dependent mechanical performance of adhesive and composite to fully understand the fracture sequence of multi-material joints under impact.