ISSN: 0884-6804
Page Count: 11

Indentation-Flexure and Low-Velocity Impact Damage in Graphite Epoxy Laminates
Sankar, BV
Graduate student and associate professor, University of Florida, FL

Kwon, YS
Graduate student and associate professor, University of Florida, FL

Abstract

Static indentation-flexure and low-velocity impact tests were performed on quasi-isotropic and cross-ply graphite/epoxy composite laminates. The load-deflection relations in static tests and impact force history in impact tests were recorded. The damage was assessed by using ultrasonic C-scanning and photo-micrographic techniques. Some features of the static behavior were explained by simple analytical models. A good correlation existed between the load-deflection curves for static and impact loading. It was found that results from a few static indentation-flexure tests can be used to predict the impact force history and delamination radius in composite laminates due to low-velocity impact.

Keywords:
indentation damage, impact damage, composite laminates, graphite/epoxy, delamination

Paper ID: CTR10361J
DOI: 10.1520/CTR10361J
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