[1]张锦刚,晁利宁,李远征,等.基于XFEM的X80管线钢焊接接头三维裂纹萌生扩展仿真分析[J].焊管,2024,47(1):20-26.[doi:10.19291/j.cnki.1001-3938.2024.01.004]
 ZHANG Jingang,CHAO Lining,LI Yuanzheng,et al.Simulation Analysis of Three?imensional Crack Propagation of X80 Pipeline Steel Welded Joint Based on XFEM[J].,2024,47(1):20-26.[doi:10.19291/j.cnki.1001-3938.2024.01.004]
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基于XFEM的X80管线钢焊接接头三维裂纹萌生扩展仿真分析()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
47
期数:
2024年第1期
页码:
20-26
栏目:
试验与研究
出版日期:
2024-02-01

文章信息/Info

Title:
Simulation Analysis of Three?imensional Crack Propagation of X80 Pipeline Steel Welded Joint Based on XFEM
文章编号:
10.19291/j.cnki.1001-3938.2024.01.004
作者:
张锦刚晁利宁李远征周新义唐家睿陈浩明韦奉
1. 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; 2. 中国石油宝鸡石油钢管有限责任公司,陕西 宝鸡 721008
Author(s):
ZHANG Jingang CHAO Lining LI Yuanzheng ZHOU Xinyi TANG Jiarui CHEN Haoming WEI Feng
1. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods Co., Ltd., Xi’an 710018, China; 2. CNPC Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
X80管线钢焊接接头裂纹扩展XFEM应力集中
Keywords:
X80 pipeline steel welded joint crack growth XFEM stress concentration
分类号:
TG406
DOI:
10.19291/j.cnki.1001-3938.2024.01.004
文献标志码:
A
摘要:
利用有限元软件ABAQUS,以X80管线钢不同坡口形式的焊接接头为研究对象,基于扩展有限元方法(XFEM),对X形和V形两种不同形式坡口的焊接接头在拉伸载荷下的裂纹扩展形态进行数值模拟分析。结果表明,裂纹尖端首先出现了应力集中,应力分布趋势与理论计算的塑性区形状大致相同。利用XFEM方法模拟裂纹尖端自由扩展,X形坡口和V形坡口的焊接接头裂纹首先出现在焊缝并靠近熔合线处,且二者的扩展路径一致,在相同条件下,X形坡口的焊接接头焊缝处最先出现裂纹,V形坡口的焊接接头焊缝处裂纹出现的时间较X形坡口出现裂纹的时间晚。
Abstract:
The crack propagation morphology of welded joints with X groove and V groove under tensile load is numerically simulated and analyzed using extended finite element method (XFEM) by ABAQUS, taking welded jionts of X80 pipeline steel with different groove forms as the research object. The results show that the stress concentration first appears at the crack tip, and the stress distribution trend is roughly the same as the shape of the plastic zone calculated theoretically. The XFEM method was used to simulate the free propagation of crack tip. The crack of the welded joint of X groove and V groove first appeared at the weld and close to the fusion line, and the propagation path of both was the same. Under the same conditions, the crack appeared first at the welded joint of X groove, and the crack appeared later at the welded joint of V groove than at the X groove.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2023-03-02基金项目: 中国石油集团公司重大科技攻关项目“自动化与高效钻完井新装备新工具研制”(项目编号2020B-4020)。作者简介:张锦刚(1977—),男,教授级高级工程师,主要研究方向为焊接材料开发和焊接工艺。
更新日期/Last Update: 2024-02-01