Plastic strain accumulation behaviour of AH32 steel in a cyclic stress-corrosion environment. (June 2018)

• Record Type: Journal Article
• Authors: Sun, Yang; Li, Haimiao; Wang, Chongxiao; Shao, Guojian
• Is Part Of: Journal of constructional steel research. Volume 145(2018)
• Page Start: 1
• Page End: 9
• Publication Date: 2018-06
• Subjects: Marine steel structure -- Cyclic loading -- Corrosion -- Plastic strain accumulation; Steel, Structural -- Periodicals; Building, Iron and steel -- Periodicals; Acier de construction -- Périodiques; Construction métallique -- Périodiques; 624.1821
• DOI: 10.1016/j.jcsr.2018.02.011
• Languages: English
• ISSNs: 0143-974X

Abstract

Abstract: Using AH32 steel as the material of interest, the present study fabricated partially corroded steel specimens based on the principle of Faraday's law. AH32 steel specimens with different corrosion losses were subjected to uniaxial cyclic loading tests at room temperature; these tests considered the effects of the number of initial loading cycles, the stress ratio ( R ), the R history, alternating tensile-compressive and high stress to reveal the characteristics of the plastic strain accumulation behaviour of AH32 steel under the combined effect of the cyclic stress and corrosion factors. Highlights: AH32 steel with different corrosion losses was subjected to uniaxial cyclic loading. The tests considered the effects of losses and changes of applied cyclic loading. The characteristics of the plastic strain accumulation behaviour were discussed. Cyclic loading was more detrimental to mechanical behaviour of AH32 steel. A higher initial stress ratio decreased the subsequent capacity of AH32 steel.