Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 41, Issue 9, Pages 1056-1065Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2009.10.024
Keywords
Laminates; Damage tolerance; Free edge impact; Analytical modelling
Funding
- Engineering and Physical Sciences Research Council [EP/F026099/1, EP/H025898/1] Funding Source: researchfish
- EPSRC [EP/H025898/1, EP/F026099/1] Funding Source: UKRI
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Barely Visible Impact Damage (BVID) can occur when laminated composite material is subject to free edge Impact loads in the plane of the laminate and can result in a significant reduction in compressive strength caused by buckle-driven delamination. This paper will report on a semi-analytical fracture mechanics model that predicts the Compression After Impact (CAI) strength of composite laminates subject to in-plane free edge Impact. Compression testing has been undertaken on three impacted coupons in order to validate the theoretical results. Analytical results are shown to be on average within 10% of experimental values for the strain at which propagation of damage occurs. (C) 2009 Elsevier Ltd All rights reserved
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