[1]贾兴志,郭震,李陈峰,等.高温环境下对接焊缝的力学性能试验研究[J].哈尔滨工程大学学报,2019,40(08):1455-1461.[doi:10.11990/jheu.201808066]
 JIA Xingzhi,GUO Zhen,LI Chenfeng,et al.Experimental investigation on mechanical properties of butt welds under high temperature[J].hebgcdxxb,2019,40(08):1455-1461.[doi:10.11990/jheu.201808066]
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高温环境下对接焊缝的力学性能试验研究(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
40
期数:
2019年08期
页码:
1455-1461
栏目:
出版日期:
2019-08-05

文章信息/Info

Title:
Experimental investigation on mechanical properties of butt welds under high temperature
作者:
贾兴志1 郭震1 李陈峰2 乔文娟1 许维军2
1. 中国矿业大学 力学与土木工程学院, 江苏 徐州 211116;
2. 哈尔滨工程大学 船舶工程学院, 黑龙江 哈尔滨 150001
Author(s):
JIA Xingzhi1 GUO Zhen1 LI Chenfeng2 QIAO Wenjuan1 XU Weijun2
1. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China;
2. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
高温环境对接焊缝E5015焊材稳态试验力学性能折减系数金相分析微观组织
分类号:
U663.2
DOI:
10.11990/jheu.201808066
文献标志码:
A
摘要:
焊接接头的力学性能是评定焊接工艺质量的重要指标。针对目前火灾高温环境下船体钢结构焊缝力学性能研究的不足,本文采用Q345B母材和E5015焊材(Q345B-E5015)对接焊缝20℃~800℃下的稳态拉伸试验研究方法,分析了高温下对接焊缝的力学性能。根据试验结果,分析了不同温度影响下试件的破坏模式,并开展了热影响区和焊缝的金相组织观察;根据不同温度下试件的应力-应变关系,分析了焊缝抗拉强度、弹性模量、抗拉极限及延展性等力学性能参数,获得了不同温度下相关参数的折减系数。与相关规范的对比分析表明:现行规范推荐的基于均质金属材料的折减系数对于Q345B-E5015焊缝是不完全适用的,尤其500℃左右及以上温度段,一些规范的取值偏于危险。试验获得的相关参数及其折减系数可用于船体对接焊缝的抗火设计和火灾下结构安全性的评估。

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相似文献/References:

[1]王元清,张元元,石永久.钢结构厚板及其对接焊缝Z向性能试验[J].哈尔滨工程大学学报,2014,(08):936.[doi:10.3969/j.issn.1006-7043.201305068]
 WANG Yuanqing,ZHANG Yuanyuan,SHI Yongjiu.Experimental study on the Z-direction properties of the steel thick plate and its butt weld[J].hebgcdxxb,2014,(08):936.[doi:10.3969/j.issn.1006-7043.201305068]

备注/Memo

备注/Memo:
收稿日期:2018-8-31。
基金项目:国家自然科学基金项目(51509058,51679055).
作者简介:贾兴志,男,硕士研究生;郭震,男,副教授;李陈峰,男,副教授.
通讯作者:李陈峰,E-mail:lichenfeng@hrbeu.edu.cn.
更新日期/Last Update: 2019-08-05