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Titolo:
In-situ monitoring of damage in CFRP laminates by means of AC and DC measurements
Autore:
Abry, JC; Choi, YK; Chateauminois, A; Dalloz, B; Giraud, G; Salvia, M;
Indirizzi:
Ecole Cent Lyon, CNRS, UMR 5621, Lab Ingn Fonctionnalisat Surfaces, F-69131 Ecully, France Ecole Cent Lyon Ecully France F-69131 t Surfaces, F-69131 Ecully, France Univ Aix Marseille 1, CNRS, UMR 139, Lab Phys Syst Desordonnes, F-13331 Marseille 3, France Univ Aix Marseille 1 Marseille France 3 nes, F-13331 Marseille 3, France
Titolo Testata:
COMPOSITES SCIENCE AND TECHNOLOGY
fascicolo: 6, volume: 61, anno: 2001,
pagine: 855 - 864
SICI:
0266-3538(2001)61:6<855:IMODIC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRICAL-RESISTANCE MEASUREMENTS;
Keywords:
health monitoring; carbon-fibre-reinforced polymers; composite materials; electrical resistance; capacitance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Salvia, M Ecole Cent Lyon, CNRS, UMR 5621, Lab Ingn Fonctionnalisat Surfaces, BP 163, F-69131 Ecully, France Ecole Cent Lyon BP 163 Ecully France F-69131 131 Ecully, France
Citazione:
J.C. Abry et al., "In-situ monitoring of damage in CFRP laminates by means of AC and DC measurements", COMP SCI T, 61(6), 2001, pp. 855-864

Abstract

Periodical maintenance NDT-based inspections are generally used for almostall complex technological structures today. The idea of using specific sensors integrated in the structure for structural real time monitoring (or health monitoring) is now in progress. Carbon-fibre-reinforced polymers (CFRP) are increasingly used as structural parts, especially in the aircraft industry. This work deals with the possibility of detecting in-situ damage in CFRP by the use of DC or AC electrical property measurements. Monotonic tests under post-buckling bending conditions are being performed on cross ply [0/90](s) and [90/0](s) carbon/epoxy laminates. The monitoring of electrical resistance and capacitance changes, linked to the modifications of the conduction paths in the composite, and occurrence of voids during loading, allowed the detection of damage growth. It seems that DC electrical conduction allows to detect fibre failure, but AC measurements are more suitable formonitoring matrix cracks (delamination, fibre/matrix debonding or transverse cracks). (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 07:06:56