Abstract
An analytical compliance method has been successfully applied to Mode I interlaminar fracture toughness tests for laminated composites. A new double cantilever beam (DCB) specimen was designed to measure load-line crack opening displacement with high accuracy, and an interpolation function proposed to calculate the crack length and the energy release rate from the analytical results of compliance of the DCB specimen. A computer-aided testing system was also developed based on the analytical compliance method. Unidirectionally reinforced carbon/epoxy laminates were tested by the computer-aided testing system in which the measurement of crack length and fracture toughness was carried out automatically. The validity of the analytical compliance method was confirmed theoretically and experimentally. Results of acoustic emission (AE) indicated good correlation between the AE amplitude and fracture toughness. Constant Felicity ratio was also observed during stable crack propagation.
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.
