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Compressive strength of composite laminates following free edge impact


Reference:

Rhead, A. T., Marchant, D. and Butler, R., 2010. Compressive strength of composite laminates following free edge impact. Composites Part A Applied Science and Manufacturing, 41 (9), pp. 1056-1065.

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Official URL:

http://dx.doi.org/10.1016/j.compositesa.2009.10.024

Abstract

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.

Details

Item Type Articles
CreatorsRhead, A. T., Marchant, D. and Butler, R.
DOI10.1016/j.compositesa.2009.10.024
Uncontrolled Keywordsfree edge impact, laminates, damage tolerance, analytical modelling
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
Research CentresAerospace Engineering Research Centre
RefereedYes
StatusPublished
ID Code20590
Additional Information10th International Conference on Deformation and Fracture of Composites (DFC-10). 15-17 April 2009. Sheffield, England.

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