Abstract
Three different techniques were used to monitor the accumulation of fibre breaks during tensile testing of high strength carbon fibre bundles impregnated with epoxy resin. These were acoustic emission, longitudinal sectioning combined with optical microscopy and a technique that involved the acid digestion of the resin from short lengths of tested composite in order to release the broken fibre fragments. Acid digestion of the resin combined with automatic counting of fibre lengths using image analysis is considered to be a useful technique for this type of study and good correlation was found between the three different techniques. Whereas longitudinal sectioning only enables the counting of fibre breaks on a two-dimensional surface, acid digestion enables a better evaluation of the total number of fibre breaks. The accumulation of fibre breaks within the impregnated bundles was found to be in good agreement with single fibre failure statistics up to strains close to those at which composite failure occurred.
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 callMore From: Composites Part A: Applied Science and Manufacturing
Disclaimer: 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.
