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) ›› 2010, Vol. 29 ›› Issue (2): 311-314.

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Experiment Researches for 16Mn Steel under Proportional and Non-proportional Stressing

XIANG Yang-kai1，ZHENG Yi2，ZHOU Zhi-xiang1，LI Shu-fang1   

  1. 1.School of Civil Engineering ＆ Architecture，Chongqing Jiaotong University，Chongqing 400074，China; 2.Liaoning Surpervision and Test Institute for Construction Materials Quality，Shenyang 110032，Liaoning，China
  • Received:2009-03-01 Revised:2010-01-20 Online:2010-04-15 Published:2015-01-22

比例及非比例路径下16Mn 钢的应力控制循环加载实验

向阳开1，郑怡2，周志祥1，李书芳1   

  1. 1.重庆交通大学土木建筑学院，重庆 400074;2.辽宁省建筑材料监督检验院，辽宁 沈阳 110032
  • 作者简介:向阳开(1964—)，男，重庆市人，副教授，博士，主要从事固体力学及桥梁结构力学行为分析。E-mail:xiangyangkai@163.com。
  • 基金资助:
    教育部科学技术研究重点项目(02132)

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Abstract: The experiments for 16Mn steel under uniaxial and multiaxial cyclic stressing were performed by using MTS809 testing system and teststar control system，the influences of stress amplitude and its history on ratcheting were investigated. The larger the stress amplitude，the larger the ratcheting strain，and the ratcheting strain stablized gradually. Meanwhile， the stress history of previous larger amplitude made the subsequent ratcheting shakedown.

Key words: non-proportional cycle, ratcheting, loading history

摘要： 应用MTS809系列电液(elec-hydrolic)伺服实验机及Teststar控制系统，对16Mn进行了应力控制的单轴及多 轴非比例循环实验。研究了应力幅值大小及其历史对单轴及多轴棘轮效应的影响，结果表明，随着应力幅值的增 加，棘轮应变增加，并逐步趋于稳定;同时，先前较大的应力幅值历史遏止了后继较小应力幅值下的棘轮效应。

关键词: 非比例循环, 棘轮效应, 加载历史

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