[1]唐海亮, 李 泉, 郑茂盛.屈服强度对膨胀管残余应力分布的影响[J].焊管,2011,34(1):9-12.[doi:1001-3938(2011)01-0009-04〖]
 TANG Hai-liang,LI Quan,ZHENG Mao-sheng.The Effect of Yield Strength on Distribution of Residual Stress in Expandable Tube[J].,2011,34(1):9-12.[doi:1001-3938(2011)01-0009-04〖]
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屈服强度对膨胀管残余应力分布的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
34
期数:
2011年第1期
页码:
9-12
栏目:
试验与研究
出版日期:
2011-01-28

文章信息/Info

Title:
The Effect of Yield Strength on Distribution of Residual Stress in Expandable Tube
文章编号:
1001-3938(2011)01-0009-04
作者:
唐海亮 李 泉 郑茂盛
(西北大学 物理学系,西安710069)
Author(s):
TANG Hai-liangLI QuanZHENG Mao-sheng
(Physics Department of Northwest University,Xi’ an 710069, China)
关键词:
膨胀管有限元屈服强度残余应力应变率
Keywords:
expandable tubefinite element analysisyield strengthresidual stressstrain rate
分类号:
TG113.25
DOI:
1001-3938(2011)01-0009-04〖
文献标志码:
A
摘要:
为了获得膨胀管膨胀后的残余应力分布,应用ANSYS/LS-DYNA有限元软件模拟膨胀管膨胀过程。膨胀管材料采用双线性随动硬化模型,改变材料的屈服强度,得到了残余应力随屈服强度的变化趋势,为膨胀管材料的选取、过大残余应力的预防和消除等工作提供了依据;改用应变率相关的材料模型,验证了应变率效应对残余应力的影响,对膨胀管材料提出了新的力学性能要求。
Abstract:
In order to obtain the distribution of residual stress generated by the expansion process of expandable tube,the finite element analysis software ANSYS/LS-DYNA was used for simulating this process.Bilinear kinematic hardening model was selected for expandable tube’s material and yield strength of the material was changed,so the various trend of residual stress accompanied by yield strength was achieved.This will provide proof for selecting expandable tube’s material,preventing and eliminating excessive residual stress and so on;changed the related material model strain rate,validated the effect of strain rate on residual stress,and new mechanical properties requirements to expandable tube’s material were proposed.

参考文献/References:

[1]林元华,张建兵,施太和,等.计算膨胀管膨胀力的新方程[J].西南石油大学学报,2007,29(2):154-156.
[2]李连进.套管的残余应力对抗挤毁强度的影响[J].重型机械,2005(1):19-22.
[3]秦国明,何东升,张丽萍,等.基于ANSYS/LS-DYNA的实体膨胀管膨胀力分析[J].石油矿场机械,2009,38(8):9-12.
[4]周南,乔登江. 脉冲束辐照材料动力学[M]. 北京: 国防工业出版社, 2002:75-85.

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备注/Memo

备注/Memo:
基金项目:陕西省“13115”科技创新工程重大科技专项项目(2007ZDKG-36);中石油横向课题“可膨胀管材料的研究与开发”
作者简介:唐海亮(1985— ),男,河北保定人,西北大学物理学系2008级硕士研究生,研究方向为金属材料、光学。
收稿日期:2010-05-30
更新日期/Last Update: