Corrosion fatigue of low carbon steel under compressive residual stress field

Okorokov, Volodymyr and Morgantini, Marta and Gorash, Yevgen and Comlekci, Tugrul and MacKenzie, Donald and van Rijswick, Ralph (2018) Corrosion fatigue of low carbon steel under compressive residual stress field. Procedia Engineering, 213. pp. 674-681. ISSN 1877-7058

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    Abstract

    This paper presents experimental investigation and numerical modeling of the effect of compressive residual stress on the corrosion fatigue life of a low carbon steel. A fatigue life test methodology based on double notched tensile test specimens is proposed. A new plasticity model is proposed for accurate simulation of compressive residual stress and calibrated to experimental stress-strain curves obtained for low carbon steel. The proposed model is implemented as a user-material in the ANSYS Workbench Finite Element Analysis program and utilized in plastic analysis and fatigue assessment. Corrosion fatigue test results are discussed and compared to numerical predictions.