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Titolo:
Fatigue behavior of 3D multi-layer angle interlock woven composite plates
Autore:
Tsai, KH; Chiu, CH; Wu, TH;
Indirizzi:
Feng Chia Univ, Dept Text Engn, Taichung 40724, Taiwan Feng Chia Univ Taichung Taiwan 40724 t Text Engn, Taichung 40724, Taiwan
Titolo Testata:
COMPOSITES SCIENCE AND TECHNOLOGY
fascicolo: 2, volume: 60, anno: 2000,
pagine: 241 - 248
SICI:
0266-3538(2000)60:2<241:FBO3MA>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
DAMAGE;
Keywords:
textule composites; fatigue; notch; woven;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Tsai, KH Feng Chia Univ, Dept Text Engn, 100 Wen Hwa Rd, Taichung 40724, Taiwan Feng Chia Univ 100 Wen Hwa Rd Taichung Taiwan 40724 0724, Taiwan
Citazione:
K.H. Tsai et al., "Fatigue behavior of 3D multi-layer angle interlock woven composite plates", COMP SCI T, 60(2), 2000, pp. 241-248

Abstract

This study was aimed at investigating the fatigue behavior of three-dimensional (3D) multi-layer angle interlock woven composite plates. Tensile cyclic stress was applied to the specimen along the weft yam direction. Unnotched three-layer and five-layer plates were used in this work in order to compare their fatigue properties and damage processes. The effect of a center hole on the fatigue behavior was also investigated by using notched three-layer and five-layer plates. The experimental results showed that the three-layer specimen exhibited higher static ultimate tensile strength (U-TS), but lower fatigue limit strength or higher fatigue sensitivity than the five-layer specimen for both the unnotched and notched plates. Normalized S/N curves of the unnotched and notched specimens, the maximum cyclic stress being divided by the appropriate UTS, were observed almost to coincide on a single line for both the three-layer and five-layer plates. This indicated that a center hole did not affect the fatigue sensitivity of these plates. Metallography was employed to study the microscopic fatigue damage process. According to the observations, the fatigue process could be divided into fivestages. The fatigue damage mechanism primarily involved transverse cracks in the warp yarns, debonding between the warp and weft yarns, debonding extension and deflection into the matrix, and weft fiber breakage. (C) 2000 Elsevier Science Ltd. All rights reserved.

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Documento generato il 06/04/20 alle ore 11:45:30