|Table of Contents|

[1] Zhu Lin, Jia Minping, Jiang Changcheng, et al. Estimation of structure crack propagationbased on multiple factors correction [J]. Journal of Southeast University (English Edition), 2017, 33 (1): 39-45. [doi:10.3969/j.issn.1003-7985.2017.01.007]

Estimation of structure crack propagationbased on multiple factors correction()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

2017 1
Research Field:
Mechanical Engineering
Publishing date:


Estimation of structure crack propagationbased on multiple factors correction
Zhu Lin1 2 Jia Minping1 Jiang Changcheng1 Zhang Wan1
1School of Mechanical Engineering, Southeast University, Nanjing 211189, China
2Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC 3800, Australia
estimation study crack propagation multiple factor correction probability density function
By deriving the stress concentration factor of the estimation approach for residual fatigue life, an estimation approach for structure crack propagation based on multiple factors correction is proposed. Then, the quantitative expression among the structure factor, stress ratio, loading type, the manufacture processing factor and the crack propagation is achieved. The proposed approach is implemented in a case study for an instance structure, and the influences of correction factors on the crack propagation are analyzed. Meanwhile, the probabilistic method based on Weibull distribution probability density function is selected to evaluate the precision of the corrected estimation approach, and the probability density of results is calculated by the probability density function. It is shown that the results estimated by the corrected approach is more precise than those estimated by the fracture mechanics, and they are closer to the test data.


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Biographies: Zhu Lin(1990—), male, graduate; Jia Minping(corresponding author), male, doctor, professor, mpjia@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51675098), Chinese Specialized Research Foundation for Doctoral Program of Higher Education(No.20130092110003), Graduate Student Research Innovation Foundation of Jiangsu Province(No.KYLX15_0059).
Citation: Zhu Lin, Jia Minping, Jiang Changcheng, et al. Estimation of structure crack propagation based on multiple factors correction[J].Journal of Southeast University(English Edition), 2017, 33(1):39-45.DOI:10.3969/j.issn.1003-7985.2017.01.007.
Last Update: 2017-03-20