Prediction of P-S-N curves for short carbon fiber-reinforced polyamide composites at different stress ratios
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- ANKAI Masaki
- University of Tsukuba
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- KAWAI Masamichi
- University of Tsukuba
Bibliographic Information
- Other Title
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- カーボン短繊維強化ナイロン複合材料の異なる応力比に対する PSN 曲線の予測
Abstract
The statistical distributions of fatigue lives of stampable CF/PA composite at different stress ratios are identified, and a procedure for predicting the S-N relationships for any stress ratios that consider the influence of the probability of failure P is proposed. Constant amplitude fatigue tests are performed at different stress ratios R=0.1, 10 χ (≡ σUCS/σUTS), respectively. To identify the statistical nature of fatigue life data, a lognormal distribution and a Weibull distribution are applied to the fatigue data obtained, respectively. The anisomorphic constant fatigue life (CFL) diagrams for different probabilities of failure (10%, 50% and 90%) are constructed on the basis of the P-S-N curves for the critical stress ratio. It is shown that the P-S-N curves for different stress ratios can successfully be predicted using the methodology proposed in this study.
Journal
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- The Proceedings of Ibaraki District Conference
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The Proceedings of Ibaraki District Conference 2018.26 (0), 807-, 2018
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282763111123200
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- NII Article ID
- 130007637421
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- ISSN
- 24242683
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed