• 首页
  • 期刊介绍
  • 编委会
  • 征稿启事
  • 期刊订阅
  • 相关下载
  • 联系我们
服役环境下镀锌钢丝力学性能影响因素分析
Influence Factor Analysis on the Mechanical Behavior of Galvanized Steel Wire under Service Environment
投稿时间:2019-03-19  修订日期:2019-05-01
DOI:103969/j.issn.1007 9629202004028
中文关键词:  服役环境  镀锌钢丝  力学性能  影响因素  试验研究
英文关键词:service environment  galvanized steel wire  mechanical property  influence factor  experimental study
基金项目:国家重点研发计划项目(2017YFC0806001);国家自然科学基金重大科研仪器研制项目(11627802);国家自然科学基金资助项目(51478071);中央高校基本业务费专项资金资助项目(XDJK2020B021);中国博士后科学基金资助项目(2017M623302XB);重庆市博士后资助项目(Xm2017033);重庆交通大学研究生教育创新基金项目(2019S0142)
              
作者单位
孟二从
MENG Ercong
重庆交通大学省部共建山区桥梁及隧道工程国家重点实验室,重庆400074
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
姚国文
YAO Guowen
重庆交通大学省部共建山区桥梁及隧道工程国家重点实验室,重庆400074
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
余亚琳
YU Yalin
西南大学工程技术学院,重庆400715
College of Engineering and Technology, Southwest University, Chongqing 400715, China
古李丰
GU Lifeng
重庆交通大学省部共建山区桥梁及隧道工程国家重点实验室,重庆400074
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
钟力
ZHONG Li
重庆交通大学省部共建山区桥梁及隧道工程国家重点实验室,重庆400074
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
摘要点击次数: 116
全文下载次数: 0
中文摘要:
      以腐蚀时间、加载方式为变化参数,对16组镀锌钢丝试件进行荷载与环境耦合作用试验,研究服役环境下镀锌钢丝的力学性能.结果表明:随着腐蚀时间的延长,试件腐蚀失重率增长趋势与Boxlucass函数相吻合,屈服强度、断后伸长率呈逐渐下降趋势;当腐蚀时间相同时,加载方式对试件腐蚀失重率、屈服强度的影响程度依次为交变应力>静态应力>无应力;试件抗拉强度受荷载类型和腐蚀时间影响相对较小;经1200h交变应力与腐蚀环境耦合作用后,试件弹性模量出现较为明显的下降.基于钢丝5级锈蚀标准,对钢丝各级锈蚀程度给出了更为详细的定性描述及相关分析,并基于Boxlucass模型提出了试件在不同应力作用下的腐蚀失重率计算公式.
英文摘要:
      To study the mechanical property of galvanized steel wire under service environment, 16group of specimens were subjected to the load and environment coupling effect experiment, with the parameters of corrosion time and loading method. The results show that with the increase of corrosion time, the increase trend of mass loss ratio accords with the Boxlucass function, and the yield strength and elongation of specimens after fracture present a gradually decrease trend. When at the same corrosion time, the mass loss ratio and the yield strength decrease amplitude are alternative stress>static stress>unstressed. Loading methods and corrosion time have little effect on specimen bearing strength. The elastic modulus of specimen decreases obviously after 1200h coupling effects of alternate stress and corrosive environment. Based on the 5 level corrosion standard, the more detailed qualitative description and relative analysis were given. At the same time, based on the Boxlucass model, the calculated formula of mass loss ratio was fitted out.
查看全文  查看/发表评论  下载PDF阅读器
关闭