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[1]何家胜,谢飞,朱晓明,等.圆柱壳内曲面椭圆裂纹应力强度因子数值计算[J].武汉工程大学学报,2011,(11):70-73.
　HE Jia sheng,XIE Fei,ZHU Xiao ming,et al.Numerical calculation for stress intensity factor ofcurved surface elliptical crack buried in cylindrical shell[J].Journal of Wuhan Institute of Technology,2011,(11):70-73.
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2011年11期
页码:
70-73
栏目:
机电与信息工程
出版日期:
2011-11-30

文章信息/Info

Title:
Numerical calculation for stress intensity factor of
curved surface elliptical crack buried in cylindrical shell
文章编号:
16742869(2011)11007004
作者:
何家胜1; 谢飞1; 朱晓明2; 陈伟2; 路远明2
1.武汉工程大学机电工程学院，湖北 武汉 430074；
2.中国石化股份有限公司武汉分公司，湖北 武汉 430082
Author(s):
HE Jiasheng1; XIE Fei1; ZHU Xiaoming2; CHEN Wei2; LU Yuanming2
1.School of Mechanical Engineering,Wuhan Institute of Technology,Wuhan 430074,China;
2.Wuhan Subsidiary company,China Petrochemical Co.Ltd.,Wuhan 430082,China
关键词:
氢腐蚀; 14节点奇异单元; 曲面椭圆裂纹; 应力强度因子; 有限元法
Keywords:
hydrogen corrosion; 14displacement of finite element; curved surface elliptical crack; stress intensity factor; finite element method
分类号:
TQ050.9
DOI:
-
文献标志码:
AAdoi:10.3969/j.issn.16742869.2011.11.018
摘要:
采用14节点法，在裂纹前沿设置三维奇异单元，建立了求解圆柱壳内埋曲面椭圆裂纹应力强度因子的断裂力学有限元模型.对裂纹前沿各点应力强度因子进行了分析，得出了应力强度因子的变化曲线并确定了最大应力强度因子所在位置为出现氢腐蚀分层现象的化工设备的安全评估提供了重要的依据.
Abstract:
A finite element model of fracture mechanics was established to calculate the stress intensity factor (SIF) of curved surface elliptical crack buried in cylindrical shell by using the method of 14displacement of the finite element setting 3D singular elements along the front edge of crack;the SIF of the points in the front edge of crack was analyzed,the variation curve of SIF was obtained and the location of the maximum SIF was discovered which provides an important basis for security assessment of the layered chemical equipments caused by hydrogen corrosion.

参考文献/References:

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