中文核心期刊
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中国科技核心期刊
RCCSE中国核心学术期刊
Journal of Chongqing Jiaotong University(Natural Science)

Journal of Chongqing Jiaotong University(Natural Science) ›› 1999, Vol. 18 ›› Issue (4): 23-29.

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A study of ratchetting behaviour under proportional and nonproportional cyclic stressing

XIANG Yang-kai1, GAO Qing2, YANG Xian-jie2   

  1. 1. Department of Bridge & Structure Engineering, Chongqing Jiaotong Institute, Chongqing 400074, China;
    2. Department of Applied Mechanics & Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:1999-03-26 Online:1999-08-25 Published:2016-10-31

比例及非比例应力循环加载条件下的棘轮效应研究

向阳开1, 高庆2, 杨显杰2   

  1. 1. 重庆交通学院 桥梁及结构工程系, 重庆 400074;
    2. 西南交通大学 应用力学与工程系, 四川成都 610031
  • 作者简介:向阳开(1964-),男,湖南湘潭人,重庆交通学院讲师,博士,研究方向:材料循环累积变形及本构关系.
  • 基金资助:
    国家自然科学基金资助项目(19772041)

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Abstract: The ratchetting experiments of 316L and 1Cr18Ni9Ti stainless steel cyclically loaded under proportional and nonproportional conditions were performed respectively.It illustrated that how the stress amplitute, mean stress and the histories of them influencing ratchetting, The evolution features of ratchetting and conducting factors were investigated.Some significant results which seek to be contributions to the model of ratchetting were obtained.

Key words: cyclic stressing, ratchetting, loading history, stainless steel

摘要： 通过对两种不锈钢材料分别进行比例和非比例应力循环加载棘轮效应试验,揭示了两种不锈钢材料的棘轮效应的一些特征,和导致这些棘轮效应特征的原因,得到了一些有意义的结果,为建立能较为精确地描述结构在多轴应力循环下的累积变形的本构模型提供了一定的实验及理论分析依据.

关键词: 应力循环, 棘轮效应, 加载历史, 不锈钢

CLC Number: