Abstract
The study of the behaviour of adhesive joints under impact loadings is a very active field of research, driven by significant industrial interest, such as the automotive industry, in order to improve mechanical behaviour, reduce weight and simplify manufacturing. Furthermore, due to high standards in terms of safety required in the automotive industry, namely the occupant’s safety during collisions, the behaviour of adhesives under impact loads is becoming a prominent object of study. This work proposes a novel and simplified method to experimentally obtain a custom set of TSLs (traction-separation laws) and estimate the fracture energy both for mode I and II that can be tested from quasi-static to impact conditions resorting to a SHPB (Split Hopkinson Pressure Bar) equipment with especially designed specimens. The method is validated by comparing those results to fracture energy values obtained using DCB (Double Cantilever Beam), ENF (End Notch Flexure) and prior validated mixed mode apparatus Finally, the SLJ (Single Lap Joint) behaviour is predicted by resorting to the custom TSLs and comparing model performance to experimental results. With the proposed method the obtained fracture energy was found to be equivalent to that obtained with more traditional fracture mechanical tests used in the field of adhesive bonding. The custom TSLs were able to predict the behaviour of SLJ fairly accurately.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
