[1]曹彩芹,王 超,李诚诚.含裂纹的梭形薄壁圆柱壳结构应力强度因子分析研究[J].西安建筑科技大学学报(自然科学版),2016,48(05):691-695.[doi:10.15986/j.1006-7930.2016.05.012]
　CAO Caiqin,WANG Chao,LI Chengcheng.Study on stress intensity factors of thin-walled shuttle cylinder structure with cracks[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(05):691-695.[doi:10.15986/j.1006-7930.2016.05.012]
点击复制

含裂纹的梭形薄壁圆柱壳结构应力强度因子分析研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年05期
页码:
691-695
栏目:
出版日期:
2016-10-31

文章信息/Info

Title:
Study on stress intensity factors of thin-walled shuttle cylinder structure with cracks
文章编号:
1006-7930(2016)05-0691-05
作者:
曹彩芹; 王 超; 李诚诚
(西安建筑科技大学理学院,陕西 西安 710055)
Author(s):
 CAO Caiqin;  WANG Chao;  LI Chengcheng
( School of Science, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China)
关键词:
梭形薄壁圆柱壳; 裂纹; 偏心受压; 应力强度因子; 计算公式
Keywords:
thin walled shuttle cylinder structure;  crack;  eccentric compression;  stress intensity factor;  formula of stress intensity factor
分类号:
O346.1
DOI:
10.15986/j.1006-7930.2016.05.012
文献标志码:
A
摘要:
应力强度因子是表征裂纹尖端应力场奇异强弱的物理量，对裂纹的扩展和构件失效具有一定的意义，针对梭形薄壁圆柱壳结构断裂问题，基于J积分理论，采用有限元方法研究了含有环向裂纹的梭形薄壁圆柱壳结构在偏心受压下的断裂力学响应，分析了荷载的大小、偏心度、裂纹长度、梭形结构的楔率对裂纹应力强度因子的影响，计算结果表明：裂纹长度、荷载以及楔率对应力强度因子影响很大，而且这些参数是相互影响的．最后根据计算数据拟合出偏心受压梭形圆截面的应力强度因子的计算公式，并和相关的计算结果进行了比较，证明了该公式的可行性．
Abstract:
The stress intensity factor(SIF) is an important parameter which reflect the stress intensity at the tip of cracks. The study of SIF has a certain significance for crack extension and failure of structure . Based on J integration theory, fracture mechanical b ehavior of eccentric compression thin-walled shuttle cylinder structure with cracks was studied using the finite element method. The influence of load, crack lengths, eccentricity and tapering ratio on the stress intensity factor was analyzed numerically . The numerical results show that the crack lengths, load and tapering ratio have significant effects on the stress intensity factors. Moreover, there are three factors, i.e. crack lengths, load and tapering ratio, which influence each other. The calculation formula of stress intensity factor of eccentrical compression thin-walled shuttle cylinder structure with cracks was proposed based on the numerical results. The results were compared with the relevant stress intensity factors calculated by others and the comparisons show the feasibility of the calcul ation formula of stress intensity factor .

参考文献/References:

[1] CHEN Y Z. Multiple crack problems for torsion thin walled cylinder[J]. International Journal of Pressure Vessels and Piping, 1999, 76(1): 49-53.

[2] 周利. 常见薄壁拉伸构件带中心裂纹时的应力强度因子公式[J]. 建筑钢结构进展, 2005, 7(4): 54-58.

ZHOU Li. A series of simple SIF formulations of model i center crack in tensile thin-walled member[J]. Progress in Steel Building Structures, 2005, 7(4): 54-58.

[3] AN J H, KIM Y J, BUDDEN P J. Elastic stress intensity factors and crack opening displacements for circumferential through-walled cracked elbows[J]. Engineering Fracture Mechanics. 2010, 77(14): 2821-2839.

[4] LEWIS T, WANG X. The T-stress solutions for through-wall circumferential cracks in cylinders subjected to general loading conditions[J]. Engineering Fracture Mechanices, 2008, 75(10): 3206-3225.

[5] WYART E, COULON D, DUFLOT M, et al. A substuctured FE-shell/XFE -3D method for crack analysis in thin-walled structures[J]. International Journal for Numerical Methods in Engineering, 2007, 72(7): 757-779.

[6] VARFOLOMEYEV I, PETERSILGE M, BUSCH M. Stress intensity factors for internal circumferential cracks in thin-and thick-walled cylinders[J]. Engineering Fracture Mechanics, 1998, 60(5): 492-500.

[7] 白杨. 带有环向内裂纹的薄壁钢管结构断裂力学计算分析[J]. 兰州理工大学学报, 2014, 32(2): 79-83.

BAI Yang. Fracture mechanics-based evaluation and analysis of thin-walled steel tubular structure with interior circumferential cracks[J]. Journal of Lanzhou University of Technology, 2014, 32(2): 79-83.

[8] 孙建刚, 盛燕, 卢胜勇. 薄壁管道穿透裂纹应力强度因子修正系数分析[J]. 大庆石油学院学报, 2008, 32(2): 79-83.

SUN Jiangang, SHENG Yan, LU Shengyong. The analysis and research of crack top’s stress intensity factor and correction coefficient of thin pipes[J]. Journal of Daqing Petroleum Institute, 2008, 32(2): 79-83.

[9] 郭建章, 张选利, 王威强. 三维J 积分有限元分析的曲面积分法[J]. 青岛化工学院学报, 2001, 22(3): 286-289.

GUO Jianzhang, ZHANG Xuanli, WANG Weiqiang. Calculations of three dimensional j -integral by surface integral method in finite element analysis[J]. Journal of Qingdao Institure of Chemical Technology, 2001, 22(3): 286-289.

[10] 中国航空研究院. 应力强度因子手册[M]. 修订版. 北京: 科学出版社, 1993.

Chinese Aeronautical Establishment. Manual of stress intensity factor [M]. Rev. ed. Beijing: Science Press, 1993.

相似文献/References:

[1]程站起,金建洲.任意梯度分布功能梯度板条平面裂纹分析[J].西安建筑科技大学学报(自然科学版),2011,43(05):741.[doi:DOI :10.15986/j .1006-7930.2011.05.024]
　CHEN GZhan-qi,J IN J ian-z hou.Plane crack problem for functionally graded strip witharbitrarily distributed properties[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2011,43(05):741.[doi:DOI :10.15986/j .1006-7930.2011.05.024]
[2]华军,陈垣欣,段志荣,等.含裂纹石墨烯辐照修复研究[J].西安建筑科技大学学报(自然科学版),2018,50(01):141.[doi:10.15986/j.1006-7930.2018.01.022]
　HUA Jun,CHEN Yuanxin,DUAN Zhirong,et al.Repairing of the graphene with a crack by carbon ion irradiation[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(05):141.[doi:10.15986/j.1006-7930.2018.01.022]

备注/Memo

备注/Memo:
基金项目：教育部博士点基金项目(20060703003)
收稿日期：2015-12-23 修改稿日期：2016-10-10
作者简介：曹彩芹(1971－)，女，博士，副教授，主要从事板壳结构断裂力学研究．E-mail: xacaocaiqin@sina.com
更新日期/Last Update: 2016-11-24