Evaluation of very high cycle fatigue properties for transverse crack initiation in cross-ply carbon fiber-reinforced plastic laminates

Tsuyoshi Miyakoshi; Takeru Atsumi; Kensuke Kosugi; Atsushi Hosoi; Terumasa Tsuda; Hiroyuki Kawada

doi:10.1111/ffe.13758

Evaluation of very high cycle fatigue properties for transverse crack initiation in cross-ply carbon fiber-reinforced plastic laminates

Tsuyoshi Miyakoshi, Takeru Atsumi, Kensuke Kosugi, Atsushi Hosoi^*, Terumasa Tsuda, Hiroyuki Kawada

^*この研究の対応する著者

基幹理工学部

研究成果: Article › 査読

抄録

This paper investigates the transverse crack initiation behaviors of carbon fiber-reinforced plastics (CFRPs) in the high-cycle and very high cycle regimes. To accelerate the fatigue test up to the very high cycle fatigue (VHCF) regime, an ultrasonic fatigue testing system that can apply the specimen ultrasonic load at a frequency of 20 kHz was used. The fatigue behavior of cross-ply CFRP laminates formed with T800S/2592 prepreg was investigated. The fatigue behaviors at N = 10³–10⁷ cycles and N = 10⁸–10⁹ cycles were obtained by hydraulic and ultrasonic fatigue tests, respectively. The slope of the S–N diagram for transverse crack initiation showed a linear decrease in the region of N = 10³–10⁶ cycles and leveled off over N = 10⁶ cycles. Furthermore, no cracks occurred in any specimen tested under the 90°-layer stress σ_90°max = 44 MPa up to a maximum of N = 6.56 × 10⁹ cycles.

本文言語	English
ページ（範囲）	2403-2414
ページ数	12
ジャーナル	Fatigue and Fracture of Engineering Materials and Structures
巻	45
号	8
DOI	https://doi.org/10.1111/ffe.13758
出版ステータス	Published - 2022 8月

ASJC Scopus subject areas

材料科学（全般）
材料力学
機械工学

文献へのアクセス

10.1111/ffe.13758

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引用スタイル

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title = "Evaluation of very high cycle fatigue properties for transverse crack initiation in cross-ply carbon fiber-reinforced plastic laminates",

abstract = "This paper investigates the transverse crack initiation behaviors of carbon fiber-reinforced plastics (CFRPs) in the high-cycle and very high cycle regimes. To accelerate the fatigue test up to the very high cycle fatigue (VHCF) regime, an ultrasonic fatigue testing system that can apply the specimen ultrasonic load at a frequency of 20 kHz was used. The fatigue behavior of cross-ply CFRP laminates formed with T800S/2592 prepreg was investigated. The fatigue behaviors at N = 103–107 cycles and N = 108–109 cycles were obtained by hydraulic and ultrasonic fatigue tests, respectively. The slope of the S–N diagram for transverse crack initiation showed a linear decrease in the region of N = 103–106 cycles and leveled off over N = 106 cycles. Furthermore, no cracks occurred in any specimen tested under the 90°-layer stress σ90°max = 44 MPa up to a maximum of N = 6.56 × 109 cycles.",

keywords = "CFRP, composites, fatigue limit, transverse crack, ultrasonic fatigue test, very high cycle fatigue",

author = "Tsuyoshi Miyakoshi and Takeru Atsumi and Kensuke Kosugi and Atsushi Hosoi and Terumasa Tsuda and Hiroyuki Kawada",

note = "Funding Information: We are very grateful to Dr. Sergei Ilyich Golovatch, Russian Academy of Sciences, for his kindness in translating the reference (in Russian) into English. The present study was supported by Knowledge Innovation Programs of Chinese Academy of Sciences (KZCX2-YW-BR-16), the Na tion al Natural Sciences Foundation of China (NO. 40901036, 31070467), and the Fundamental Research Funds for the Central Universities (NO. 2008-10008). Publisher Copyright: {\textcopyright} 2022 John Wiley & Sons Ltd.",

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AU - Miyakoshi, Tsuyoshi

AU - Atsumi, Takeru

AU - Kosugi, Kensuke

AU - Hosoi, Atsushi

AU - Tsuda, Terumasa

AU - Kawada, Hiroyuki

N1 - Funding Information: We are very grateful to Dr. Sergei Ilyich Golovatch, Russian Academy of Sciences, for his kindness in translating the reference (in Russian) into English. The present study was supported by Knowledge Innovation Programs of Chinese Academy of Sciences (KZCX2-YW-BR-16), the Na tion al Natural Sciences Foundation of China (NO. 40901036, 31070467), and the Fundamental Research Funds for the Central Universities (NO. 2008-10008). Publisher Copyright: © 2022 John Wiley & Sons Ltd.

PY - 2022/8

Y1 - 2022/8

N2 - This paper investigates the transverse crack initiation behaviors of carbon fiber-reinforced plastics (CFRPs) in the high-cycle and very high cycle regimes. To accelerate the fatigue test up to the very high cycle fatigue (VHCF) regime, an ultrasonic fatigue testing system that can apply the specimen ultrasonic load at a frequency of 20 kHz was used. The fatigue behavior of cross-ply CFRP laminates formed with T800S/2592 prepreg was investigated. The fatigue behaviors at N = 103–107 cycles and N = 108–109 cycles were obtained by hydraulic and ultrasonic fatigue tests, respectively. The slope of the S–N diagram for transverse crack initiation showed a linear decrease in the region of N = 103–106 cycles and leveled off over N = 106 cycles. Furthermore, no cracks occurred in any specimen tested under the 90°-layer stress σ90°max = 44 MPa up to a maximum of N = 6.56 × 109 cycles.

AB - This paper investigates the transverse crack initiation behaviors of carbon fiber-reinforced plastics (CFRPs) in the high-cycle and very high cycle regimes. To accelerate the fatigue test up to the very high cycle fatigue (VHCF) regime, an ultrasonic fatigue testing system that can apply the specimen ultrasonic load at a frequency of 20 kHz was used. The fatigue behavior of cross-ply CFRP laminates formed with T800S/2592 prepreg was investigated. The fatigue behaviors at N = 103–107 cycles and N = 108–109 cycles were obtained by hydraulic and ultrasonic fatigue tests, respectively. The slope of the S–N diagram for transverse crack initiation showed a linear decrease in the region of N = 103–106 cycles and leveled off over N = 106 cycles. Furthermore, no cracks occurred in any specimen tested under the 90°-layer stress σ90°max = 44 MPa up to a maximum of N = 6.56 × 109 cycles.

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KW - composites

KW - fatigue limit

KW - transverse crack

KW - ultrasonic fatigue test

KW - very high cycle fatigue

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