Very high-cycle fatigue characteristics of cross-ply CFRP laminates in transverse crack initiation

Atsushi Hosoi, Takuro Suzuki, Kensuke Kosugi, Takeru Atsumi, Yoshinobu Shimamura, Terumasa Tsuda, Hiroyuki Kawada

研究成果: Conference contribution

抜粋

Fan blades are subjected to very high-cycle loadings during the design life, so it is essential to evaluate the giga-cycle fatigue characteristics of carbon fiber reinforced plastic (CFRP) laminates. In this study, the transverse crack initiation of the cross-ply CFRP laminates in very high-cycle fatigue region was evaluated using an ultrasonic fatigue testing machine. The fatigue tests were conducted at the frequency of f = 20 kHz and the stress ratio of R = −1. In order to suppress temperature rise of the specimen, the intermittent operation with the loading time of 200 ms and the dwelling time of 2000 ms was adopted. The fatigue life data to transverse crack initiation in very high-cycle fatigue region was compared with the data of the fatigue test which was conducted at the frequency of f = 5 Hz and the stress ratios of R = 0.1 and −1 using a hydraulic control fatigue test machine. It was evaluated considering the influences of the stress ratio and the thermal residual stress by using the modified Walker model. The fatigue life to the transverse crack initiation of the cross-ply CFRP laminates in the very high-cycle region exceeding 108 cycles was on the extension of the test data in the low cycle region.

元の言語English
ホスト出版物のタイトルICAF 2019 – Structural Integrity in the Age of Additive Manufacturing - Proceedings of the 30th Symposium of the International Committee on Aeronautical Fatigue, 2019
編集者Jerzy Komorowski, Antoni Niepokolczycki
出版者Springer
ページ838-846
ページ数9
ISBN(印刷物)9783030215026
DOI
出版物ステータスPublished - 2020 1 1
イベント30th Symposium of the International Committee on Aeronautical Fatigue, ICAF 2019 - Warsaw, Poland
継続期間: 2019 6 22019 6 7

出版物シリーズ

名前Lecture Notes in Mechanical Engineering
ISSN(印刷物)2195-4356
ISSN(電子版)2195-4364

Conference

Conference30th Symposium of the International Committee on Aeronautical Fatigue, ICAF 2019
Poland
Warsaw
期間19/6/219/6/7

    フィンガープリント

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

これを引用

Hosoi, A., Suzuki, T., Kosugi, K., Atsumi, T., Shimamura, Y., Tsuda, T., & Kawada, H. (2020). Very high-cycle fatigue characteristics of cross-ply CFRP laminates in transverse crack initiation. : J. Komorowski, & A. Niepokolczycki (版), ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing - Proceedings of the 30th Symposium of the International Committee on Aeronautical Fatigue, 2019 (pp. 838-846). (Lecture Notes in Mechanical Engineering). Springer. https://doi.org/10.1007/978-3-030-21503-3_66