OS0315 Investigation of Appropriate Measurement Conditions for Fatigue Limit Estimation Based on Dissipated Energy for 304 Stainless Steel
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- AKAI Atsushi
- Dept. of Mechanical Engineering Graduate School of Eng., Kobe University
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- SHIOZAWA Daiki
- 神戸大学大学院工学研究科
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- SAKAGAMI Takahide
- 神戸大学大学院工学研究科
Bibliographic Information
- Other Title
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- OS0315 散逸エネルギ評価法によるSUS304鋼の疲労限度推定の測定条件に関する検討(OS3-3 AE・超音波・赤外線,OS-3 非破壊評価と構造モニタリング1)
Abstract
In recent years, fatigue limit estimation method based on energy dissipation measured by infrared thermography is getting an increasing attention. In this method, temperature change due to irreversible energy dissipation during one loading cycle is measured for different levels of applied stress amplitude. Obtained relationship between temperature change and stress amplitude shows a significant inflection at certain stress level where temperature change due to energy dissipation shows steep increase. It is known that this stress level coincides with fatigue limit. In this study, measurement conditions for appropriate fatigue limit determination based on the energy dissipation are discussed in conjunction with (i) required number of loading cycles in each stress level, (ii) representative value in measurement area, and (iii) influence of loading history and fatigue damage accumulation.
Journal
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- The Proceedings of the Materials and Mechanics Conference
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The Proceedings of the Materials and Mechanics Conference 2011 (0), _OS0315-1_-_OS0315-3_, 2011
The Japan Society of Mechanical Engineers
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Details 詳細情報について
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- CRID
- 1390282680848093056
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- NII Article ID
- 110009689460
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- ISSN
- 24242845
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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