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作者:

Yin, Xiang (Yin, Xiang.) | Shang, De-Guang (Shang, De-Guang.) (学者:尚德广) | Li, Dao-Hang (Li, Dao-Hang.) | Zhang, Gang (Zhang, Gang.) | Zhang, Hang (Zhang, Hang.) | Zhou, Shuai (Zhou, Shuai.) | Guo, Yi-Er (Guo, Yi-Er.)

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EI Scopus SCIE

摘要:

A multiaxial cycle counting method was proposed by path-dependent line integral (PDLI). In the proposed PDLI multiaxial cycle counting method, the length increment of loading path is assigned a positive or negative sign in the strain space, and the interval from zero to the maximum value of PDLI is defined as a half-cycle. A very concise recursive algorithm is provided to implement the proposed multiaxial cycle counting method. The experimental verification showed that the proposed multiaxal cycle counting method was used to count multi-axial cycle, which can obtain satisfactory life prediction results under multiaxial variable amplitude loading. In addition, the PDLI multiaxial cycle counting method can be reduced to a uniaxial rainflow counting form.

关键词:

Variable amplitude loading Life prediction Multiaxial fatigue Cycle counting Path -dependent line integral

作者机构:

  • [ 1 ] [Yin, Xiang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 2 ] [Shang, De-Guang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Gang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Hang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 5 ] [Zhou, Shuai]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 6 ] [Guo, Yi-Er]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 7 ] [Li, Dao-Hang]Tiangong Univ, Sch Elect Engn, Tianjin 300387, Peoples R China

通讯作者信息:

  • [Shang, De-Guang]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China;;

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来源 :

INTERNATIONAL JOURNAL OF FATIGUE

ISSN: 0142-1123

年份: 2024

卷: 178

6 . 0 0 0

JCR@2022

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