Abstract
The object of the present work was to investigate the failure behavior of a [02/90/±45] AS/3501-5A graphite/epoxy laminate through proof testing. The primary emphasis was on the delineation of the effect of the proof test on the residual strength and life, the establishment of strength-life relations, and the identification of failure process. The test series consisted of static tests, tension-tension fatigue tests preceded by proof tests, and examinations of failure modes. Major findings can be summarized as follows: (1) Proof tests have little effect on the residual strength and life. (2) Strength and life are statistically interrelated so that a statically stronger specimen has a longer life. (3) A higher modulus is an indication of a higher strength and longer life. (4) The failure process of the present laminate is similar to that of the quasi-isotropic [0/90/±45]8 laminate. However, the crack multiplication in the present laminate is more extensive and faster. (5) Delamination surfaces consist of shiny and dull areas. The shiny areas have bare fibers, whereas the dull areas have fiber imprints in the epoxy.
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.
