論文

査読有り 筆頭著者
2021年10月

Prediction of statistical life time for unidirectional CFRTP under cyclic loading

Journal of Reinforced Plastics and Composites
  • Masayuki Nakada
  • ,
  • Yasushi Miyano
  • ,
  • Soshi Kageta
  • ,
  • Hirofumi Nishida
  • ,
  • Yutaka Hayashi
  • ,
  • Kiyoshi Uzawa

40
19-20
開始ページ
749
終了ページ
758
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1177/07316844211005542
出版者・発行元
SAGE Publications

Recently, the Innovative Composite Center of Kanazawa Institute of Technology developed a thermoplastic epoxy resin (TP-EP). Resin-impregnated carbon fiber reinforced TP-EP (CF/TP) strands molded by pultrusion were developed by Komatsu Matere Co., Ltd., for use as tension rods. This study examines the prediction of the statistical life time for these developed CF/TP strands under cyclic tension loading with comparison to our earlier report of similar predictions for carbon fiber reinforced thermoset epoxy resin (CF/TS) strands having a thermoset epoxy resin (TS-EP) as a matrix. First, test methods for static and fatigue strengths at elevated temperatures were developed for CF/TP strands. Second, static and fatigue tensile strengths of CF/TP strands were measured statistically at various constant temperatures under a constant strain rate and frequency. The master curves of statistical fatigue tensile strengths for CF/TP strands were constructed by substituting the measured data into the formulations of these strengths based on the matrix resin viscoelasticity. The fatigue strength characteristics of CF/TP strands were discussed through comparison to those of CF/TS strands with thermosetting epoxy resin as the matrix.

リンク情報
DOI
https://doi.org/10.1177/07316844211005542
URL
http://journals.sagepub.com/doi/pdf/10.1177/07316844211005542
URL
http://journals.sagepub.com/doi/full-xml/10.1177/07316844211005542
ID情報
  • DOI : 10.1177/07316844211005542
  • ISSN : 0731-6844
  • eISSN : 1530-7964

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