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

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Contribution to journal › Article › peer-review

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 σ_90°max = 44 MPa up to a maximum of N = 6.56 × 10⁹ cycles.

Original language	English
Pages (from-to)	2403-2414
Number of pages	12
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	45
Issue number	8
DOIs	https://doi.org/10.1111/ffe.13758
Publication status	Published - 2022 Aug

Keywords

CFRP
composites
fatigue limit
transverse crack
ultrasonic fatigue test
very high cycle fatigue

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1111/ffe.13758

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Evaluation of very high cycle fatigue properties for transverse crack initiation in cross-ply carbon fiber-reinforced plastic laminates. / Miyakoshi, Tsuyoshi; Atsumi, Takeru; Kosugi, Kensuke et al.
In: Fatigue and Fracture of Engineering Materials and Structures, Vol. 45, No. 8, 08.2022, p. 2403-2414.

Research output: Contribution to journal › Article › peer-review

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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 - fatigue limit

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

Abstract

Keywords

ASJC Scopus subject areas

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