A nonlinear cumulative evolution model for corrosion fatigue damage

Autor: Zhong-ying Han, Yu-guang Cao, Jin-quan Xu, Xiao-guang Huang
Rok vydání: 2014
Předmět:
Zdroj: Journal of Zhejiang University SCIENCE A. 15:447-453
ISSN: 1862-1775
1673-565X
DOI: 10.1631/jzus.a1300362
Popis: A nonlinear cumulative evolution model for corrosion fatigue damage was proposed. Corrosion fatigue damage was considered as a nonlinear cumulative result of stress corrosion damage and fatigue damage. The influences of stress corrosion damage and fatigue damage on corrosion fatigue damage and damage evolution life were studied from a phenomenological point of view. The relevant damage parameters were determined by the experimental results of the LY12CZ aluminum alloy, and the corrosion fatigue life evaluation model based on damage evolution law was established. The corrosion fatigue life predicted by evaluation model agrees well with the experimental result. The damage evolution model in this study can provide a new method for theoretical research and life prediction of corrosion fatigue.
Databáze: OpenAIRE
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