Abstract
The critical strain energy release rate, G c , at edge delamination has been measured indirectly for angle-ply laminates with standard resin and toughened resin under mixed-mode loading at various K III/K I ratios. It is shown that G c increases with increasing K III/K I ratio. The critical energy release rate is significantly higher in the toughened resin laminate than in the standard resin laminate. Moisture absorption does not affect the critical energy release rate for laminates with standard resin, whereas it reduces the critical energy release rate for laminates with toughened resin. In confirmation of this, it has been observed that the hackle-dominated brittle resin fracture occurring in the standard resin laminate is replaced by semi-ductile fracture in the toughened resin laminate. When the toughened resin laminate is moisturized prior to testing the fracture surface appearance returns to being hackle-dominated.
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.
