16 April 2014 Comparison of self repair in various composite matrix materials
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In a comparison of self repair in graphite composites (for airplane applications) versus epoxy and vinyl ester composites (for building structures or walls) 1 the type of damage that the fiber/matrix is prone to experience is a prime factor in determining which materials self repair well and 2 the flow of energy during damage determines what kinds of damage that can be self repaired well. 1) In brittle composites, repair was successful throughout the composite due to matrix cracking which allowed for optimum chemical flow, whereas in toughened composites that did not crack, the repair chemical flows into a few layers of the composite. 2) If the damage energy is stopped by the composite and goes laterally, it causes delamination which will be repaired; however if the damage energy goes through the composite as with a puncture, then there will be limited delamination, less chemical release and less self repair.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Carolyn Dry, Carolyn Dry, } "Comparison of self repair in various composite matrix materials", Proc. SPIE 9059, Industrial and Commercial Applications of Smart Structures Technologies 2014, 90590N (16 April 2014); doi: 10.1117/12.2057489; https://doi.org/10.1117/12.2057489


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