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Compression of laminated composite beams with initial damageThe effect of isolated damage modes on the compressive strength and failure characteristics of laminated composite test specimens were evaluated experimentally and numerically. In addition to specimens without initial damage, specimens with three types of initial damage were considered: (1) specimens with short delaminations distributed evenly through the specimen thickness, (2) specimens with few long delaminations, and (3) specimens with local fiber damage in the surface plies under the three-point bend contact point. It was found that specimens with short multiple delamination experienced the greatest reduction in compression strength compared to the undamaged specimens. Single delaminations far from the specimen surface had little effect on the final compression strength, and moderate strength reduction was observed for specimens with localized surface ply damage.
Document ID
19930060482
Document Type
Reprint (Version printed in journal)
Authors
Breivik, Nicole L. (NASA Langley Research Center Hampton, VA, United States)
Gurdal, Zafer (NASA Langley Research Center Hampton, VA, United States)
Griffin, O. H., Jr. (Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: Journal of Reinforced Plastics and Composites
Volume: 12
Issue: 7
ISSN: 0731-6844
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NAG1-343
Distribution Limits
Public
Copyright
Other