Strength prediction of notched woven composite plates using a cohesive zone approach
The present paper is concerned with modelling damage and fracture in notched woven fabric composites. Previous experimental work has shown that damage at a notch in a variety of GFRP and CFRP composites based on woven fabric reinforcement comprises matrix damage and fibre tow fracture along the plan...
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| Main Authors: | , , |
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| Format: | Article |
| Published: |
Trans Tech Publications, Switzerland
2014
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.4028/www.scientific.net/AMR.845.199 http://dx.doi.org/10.4028/www.scientific.net/AMR.845.199 http://eprints.uthm.edu.my/4661/1/Mohd_Hilton_Ahmad_U.pdf |
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| Summary: | The present paper is concerned with modelling damage and fracture in notched woven
fabric composites. Previous experimental work has shown that damage at a notch in a variety of
GFRP and CFRP composites based on woven fabric reinforcement comprises matrix damage and
fibre tow fracture along the plane of maximum stress. It is these experimental observations that
inform the failure modelling developed here, in which a cohesive zone approach is used within a 2-
D finite element framework. The cohesive zone parameters are based on previously reported
experimental measurements for the strength and toughness of the woven fabric materials under
investigation. The approach is shown to provide predictions of notched strength that are in very
good agreement (less than 11% discrepancy) with experimental results from the literature for a
range of GFRP and CFRP woven fabric systems. |
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