Journal
COMPOSITES PART B-ENGINEERING
Volume 66, Issue -, Pages 46-57Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.04.025
Keywords
Fabrics/textiles; Impact behaviour; Fatigue; Acoustic emission
Funding
- Region Poitou-Charentes (France)
- Ecole Doctorale SI-MMEA
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The purpose of this work is to study the resistance to low velocity impact of woven hemp/epoxy matrix composites and the influence of impact damage on their residual quasi-static tensile and cyclic fatigue strengths. Impact characteristic parameters were evaluated and critically compared to those found in the literature for other similar composites. Damage mechanisms were analysed by using AE monitoring and microscopic observations. An analytical model is used to predict the fatigue lifetime of impacted specimens. Moreover a damage scenario is proposed, reduced to two phases in post-impacted fatigue behaviour, instead of three phases for non impacted specimens. (C) 2014 Elsevier Ltd. All rights reserved.
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