Fracture Mechanics Analysis of Composites with Ply-Drops - Measurement of Delamination Fatigue Crack Growth Rate

Stergios Goutianos, Bent F. Sørensen

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Abstract

Ply-drops must be taken into account in the design of composite structures due to the initiation and propagation of delaminations at ply-drop locations. This damage mode is experimentally investigated in tension-tension fatigue and the fatigue delamination growth rate is measured for two (external and internal) ply-drop geometries. It is found that the fatigue delaminations grow at a constant rate. Fracture mechanics, using the finite element method, is used to analyse the ply-drops. The influence of material and geometric parameters on the fracture energy release rate is investigated.
Original languageEnglish
Publication date2018
Number of pages8
Publication statusPublished - 2018
EventECCM18 - 18th European Conference on Composite Materials - Athens, Greece
Duration: 24 Jun 201828 Jun 2018

Conference

ConferenceECCM18 - 18th European Conference on Composite Materials
CountryGreece
CityAthens
Period24/06/201828/06/2018

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