[1]张阿昱,王建,张亚刚,等.CT70低合金高强度油管用钢激光焊接接头残余应力有限元模拟[J].焊管,2024,47(6):28-33.[doi:10.19291/j.cnki.1001-3938.2024.06.005]
 ZHANG Ayu,WANG Jian,ZHANG Yagang,et al.Finite Element Simulation of Residual Stress in Laser Welded Joints of CT70 Low Alloy High Strength Tubing Steel[J].,2024,47(6):28-33.[doi:10.19291/j.cnki.1001-3938.2024.06.005]
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CT70低合金高强度油管用钢激光焊接接头残余应力有限元模拟()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
47
期数:
2024年第6期
页码:
28-33
栏目:
试验与研究
出版日期:
2024-06-27

文章信息/Info

Title:
Finite Element Simulation of Residual Stress in Laser Welded Joints of CT70 Low Alloy High Strength Tubing Steel
文章编号:
10.19291/j.cnki.1001-3938.2024.06.005
作者:
张阿昱王建张亚刚毕宗岳余晗
1.中国石油宝鸡石油钢管有限责任公司,陕西 宝鸡 721008;
2.中油国家石油天然气管材工程技术研究中心有限公司,西安 710018;
3.中国石油渤海钻探第四钻井工程公司,河北 沧州 062450
Author(s):
ZHANG AyuWANG JianZHANG YagangBI ZongyueYU Han
1. CNPC Baoji Petroleum Steel Pipe Co.,Ltd.,Baoji 721008,Shaanxi,China;
2. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods Co.,Ltd.,Xi’an 710018,China;
3. CNPC Bohai Drilling Engineering Co.,Ltd.,No.4 Drilling Engineering Company,Cangzhou 062450,Hebei,China
关键词:
低合金高强度油管激光焊焊接接头残余应力
Keywords:
low alloy high strength tubinglaser weldingwelded jointresidual stress
分类号:
TG407
DOI:
10.19291/j.cnki.1001-3938.2024.06.005
文献标志码:
A
摘要:
针对 CT70 级连续管用钢激光焊焊接接头,考虑试板、焊缝、热源的轴对称性,应用有限元软件建立了1/2 轴对称有限元分析模型,对激光焊接接头的温度场、变形场与应力场进行了模拟分析。结果表明,有限元模拟焊缝尺寸与实际基本一致;残余应力主要集中在焊缝周围,在远离焊缝区域残余应力逐渐减小,且焊缝中心为拉应力;变形在焊缝周围最大,距离焊缝越远变形越小。将有限元模拟结果与实际测试结果对比,激光焊焊缝中心为拉应力,与有限元计算结果相同。
Abstract:
Considering the axisymmetric properties of test plate, weld and heat source, a 1/2 axisymmetric finite element analysis model was established by using finite element software to simulate the temperature field, deformation field and stress field of the laser welded joint of CT70 coiled tubing steel. The results show that the weld size simulated by laser welding finite element is basically consistent with the actual size. The residual stress in the finite element simulation of laser welding is mainly concentrated around the weld, the residual stress decreases gradually in the area far from the weld, and the center of the laser welding weld is the tensile stress. The deformation of laser welding is the largest around the weld, and the farther away from the weld, the smaller the deformation.The finite element simulation results are compared with the actual test results. The center of laser welding seam is tensile stress, which is the same as the finite element calculation results.

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备注/Memo

备注/Memo:
收稿日期:2023-05-05
基金项目:中国石油天然气集团有限公司前瞻性基础性技术攻关项目“井下大功率电加热器研制”(项目编号2022DJ1409)。
作者简介:张阿昱(1984—),女,河南郑州人,硕士研究生,主要研究方向为石油管材新产品研发及材料性能评价。
更新日期/Last Update: 2024-06-27