Journal
COMPOSITE STRUCTURES
Volume 49, Issue 2, Pages 151-171Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0263-8223(99)00130-0
Keywords
composite; boltedjoints; failure characterisation; experimental investigation
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A comprehensive experimental program was conducted to measure and characterize the development of damage in the vicinity of fastener holes in graphite/epoxy composite laminates. This was carried out to generate data which can be used for development of appropriate failure criteria. Test specimens were loaded in quasi-static cycles with successively increasing loads, and damage development in the vicinity of the bolt holes was detected using different methods such as strain measurements, acoustic emission, X-ray and microscopic examination. Several failure modes were detected in a series of events starting at load levels far below the level at which the first visible evidence of damage appeared on the load-displacement curve. Failure modes included matrix cracking, fibre fracture, delamination and kinking. (C) 2000 Elsevier Science Ltd. All rights reserved.
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