Experimental Study on Medium and Low Cycle Fatigue Properties of Cast Steel GS20Mn5V
作者机构：Jiangsu Key Laboratory of Engineering Mechanics&Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of EducationSchool of Civil EngineeringSoutheast UniversityNanjing 210096China
出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)
年 卷 期：2021年第26卷第6期
页 面：765-773页
核心收录：
学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0814[工学-土木工程]
基 金：the National Key Research and Development Program of China(No.2017YFC0805100) the National Natural Science Foundation of China(No.51578137) the Priority Academic Program Development of the Jiangsu Higher Education Institutions the Open Research Fund Program of Jiangsu Key Laboratory of Engineering Mechanics
主 题：cast steel GS20Mn5V fatigue test double logarithmic linear model(DLLM) reversed generalize Pareto model(RGPM) S-N curve P-S-N curve
摘 要：Owing to the remarkable advantages in mechanical behavior,cast steel nodes have been widely used in static ***,cast steel nodes also gain increasing popularity due to the superior fatigue performance in dynamic structures,but they are not yet widely used because the fatigue properties of cast steel are not well *** this paper,the fatigue test of cast steel GS20Mn5V commonly used in steel castings is carried *** strength of medium and low cycle fatigue and the fatigue limit are *** feasibility of the estimated S-N(fatigue stress versus life)curve is *** double logarithmic linear model(DLLM)and the reversed generalized Pareto model(RGPM)are used to fit the experimental data,and the comparison is *** P-S-N(the relationship between fatigue stress and life at different survival rates)curve obtained by the RGPM is *** results show that the estimated S-N curve is not suitable for low cycle fatigue life,fitting the experimental data with the RGPM is the best,and obtaining the P-S-N curve from the RGPM is feasible.
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