Analysis of Low-Cycle Fatigue Crack Growth for Stiffened Plate Based on Accumulative Plastic Strain

Jun Lin Deng; Ping Yang; Qin Dong; Hong Wang

doi:10.4028/www.scientific.net/AMM.496-500.143

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 496-500Analysis of Low-Cycle Fatigue Crack Growth for...

Analysis of Low-Cycle Fatigue Crack Growth for Stiffened Plate Based on Accumulative Plastic Strain

Abstract:

The propagation rate of low cycle fatigue and life expectancy for stiffened plates are analyzed by using local average strain amplitude at crack tip as the basic parameter. The crack propagation is considered as the result of local material separation in the plastic zone of crack tip, which is not a continuous process but an intermittent alternating process of strain accumulation. From the point of view, the analysis is performed and the results are well compared with those from Finite element method.

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Periodical:

Applied Mechanics and Materials (Volumes 496-500)

Pages:

143-147

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.496-500.143

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Online since:

January 2014

Authors:

Jun Lin Deng, Ping Yang*, Qin Dong, Hong Wang

Keywords:

Accumulative Strain, Fatigue Crack Propagation, Low Cycle Fatigue, Stiffened Plate

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