Definition of Stress and Strain Ranges for Multiaxial Fatigue Life Evaluation under Non-Proportional Loading
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- ITOH Takamoto
- Div. of Mech. Eng., Graduate School of Engineering, Univ. of Fukui
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- SAKANE Masao
- Dept. of Mech. Eng., Collage of Science & Engineering, Ritsumeikan Univ.
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- SHIMIZU Yuuta
- Graduate Student, Course of Mech. Eng., Graduate School of Engineering, Univ. of Fukui
Bibliographic Information
- Other Title
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- Definition of stress and strain ranges for multiaxial fatigue life evaluation under non-proportional multiaxial loading
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Abstract
A simple and clear method of evaluating stress and strain ranges under non-proportional multiaxial loading where principal directions of stress and strain are changed during a cycle is needed for assessing multiaxial fatigue. This paper proposes a simple method of determining the principal stress and strain ranges and the severity of non-proportional loading with defining the rotation angles of the maximum principal stress and strain in a three dimensional stress and strain space. Based on the method proposed, non-proportional stress and strain ranges are derived and applicability of the range to the life evaluation of type 304 stainless steel under 15 proportional and non-proportional strain paths are discussed. The strain range taking account of intensity of loading path reducing life can be suitable parameter for multiaxial fatigue life evaluation under non-proportional loading.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 62 (2), 117-124, 2013
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205445834752
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- NII Article ID
- 130004481090
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 024295958
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed