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An efficient methodology for the experimental characterization of mode II delamination growth under fatigue loading

Crack growth rate curves provide information about the delamination resistance of composite materials under cyclic loading. The existing methodologies for mode II fatigue testing using three-point bending end-notched flexure (3-ENF) under constant cyclic displacement conditions yield discontinuous delamination growth rate curves, therefore requiring a batch of several specimens to be tested under different severity conditions in order to fully characterize the crack growth. This work describes a variable cyclic displacement test procedure that, in combination with the real time monitoring of the specimen鈥檚 compliance, allows the crack growth rate to be measured for the desired range of severities with a single specimen, thus avoiding any human intervention during the test

漏 International Journal of Fatigue, 2017, vol. 95, p. 185-193

Elsevier

Author: Carreras Blasco, Laura
Renart Canalias, Jordi
Turon Travesa, Albert
Costa i Balanzat, Josep
Essa, Y.
Martin de la Escalera, F.
Abstract: Crack growth rate curves provide information about the delamination resistance of composite materials under cyclic loading. The existing methodologies for mode II fatigue testing using three-point bending end-notched flexure (3-ENF) under constant cyclic displacement conditions yield discontinuous delamination growth rate curves, therefore requiring a batch of several specimens to be tested under different severity conditions in order to fully characterize the crack growth. This work describes a variable cyclic displacement test procedure that, in combination with the real time monitoring of the specimen鈥檚 compliance, allows the crack growth rate to be measured for the desired range of severities with a single specimen, thus avoiding any human intervention during the test
Format: application/pdf
Citation: 025849
ISSN: 0142-1123
Document access: http://hdl.handle.net/10256/13089
Language: eng
Publisher: Elsevier
Collection: Versi贸 postprint del document publicat a: http://dx.doi.org/10.1016/j.ijfatigue.2016.10.017
Is part of: 漏 International Journal of Fatigue, 2017, vol. 95, p. 185-193
Rights: Tots els drets reservats
Subject: Materials compostos -- Deslaminatge
Composite materials -- Delamination
Materials compostos -- Fatiga
Composite materials -- Fatigue
Assaigs de materials
Materials -- Testing
Resist猫ncia de materials
Strength of materials
Title: An efficient methodology for the experimental characterization of mode II delamination growth under fatigue loading
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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