轴向拉伸钢管Ⅰ型裂纹尖端的应力场

轴向拉伸钢管Ⅰ型裂纹尖端的应力场

张道明, 梁力

文章导航 > 力学与实践 > 2015 > 37(4) : 513-517,507. > DOI: 10.6052/1000-0879-14-318 CSTR: 32047.14.1000-0879-14-318

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张道明, 梁力. 轴向拉伸钢管Ⅰ型裂纹尖端的应力场[J]. 力学与实践, 2015, 37(4): 513-517,507. DOI: 10.6052/1000-0879-14-318

引用本文:

张道明, 梁力. 轴向拉伸钢管Ⅰ型裂纹尖端的应力场[J]. 力学与实践, 2015, 37(4): 513-517,507. DOI: 10.6052/1000-0879-14-318

ZHANG Daoming, LIANG Li. THE STRESS FIELD AT MODE I CRACK TIP ON STEEL PIPE UNDER AXIAL TENSION[J]. MECHANICS IN ENGINEERING, 2015, 37(4): 513-517,507. DOI: 10.6052/1000-0879-14-318

Citation:

ZHANG Daoming, LIANG Li. THE STRESS FIELD AT MODE I CRACK TIP ON STEEL PIPE UNDER AXIAL TENSION[J]. MECHANICS IN ENGINEERING, 2015, 37(4): 513-517,507. DOI: 10.6052/1000-0879-14-318

张道明, 梁力. 轴向拉伸钢管Ⅰ型裂纹尖端的应力场[J]. 力学与实践, 2015, 37(4): 513-517,507. CSTR: 32047.14.1000-0879-14-318

引用本文:

张道明, 梁力. 轴向拉伸钢管Ⅰ型裂纹尖端的应力场[J]. 力学与实践, 2015, 37(4): 513-517,507. CSTR: 32047.14.1000-0879-14-318

ZHANG Daoming, LIANG Li. THE STRESS FIELD AT MODE I CRACK TIP ON STEEL PIPE UNDER AXIAL TENSION[J]. MECHANICS IN ENGINEERING, 2015, 37(4): 513-517,507. CSTR: 32047.14.1000-0879-14-318

Citation:

ZHANG Daoming, LIANG Li. THE STRESS FIELD AT MODE I CRACK TIP ON STEEL PIPE UNDER AXIAL TENSION[J]. MECHANICS IN ENGINEERING, 2015, 37(4): 513-517,507. CSTR: 32047.14.1000-0879-14-318

轴向拉伸钢管Ⅰ型裂纹尖端的应力场

张道明^1, ,,
梁力^2, ,

1.
齐齐哈尔大学建筑与土木工程学院, 黑龙江齐齐哈尔 161006
2. 东北大学资源与土木工程学院, 沈阳 110004

基金项目: 黑龙江省教育厅科学技术研究项目资助(12541884).

详细信息

通讯作者:
张道明,副教授,博士后,研究方向为结构工程.E-mail:zdmzdm@sina.com

梁力,教授,博士,主要从事工程力学数值方法研究.E-mail:ll-neu@163.com

中图分类号: U663.7
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- 文章访问数: 856
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出版历程
- 收稿日期: 2014-11-02
- 修回日期: 2014-12-08
- 发布日期: 2015-08-14

THE STRESS FIELD AT MODE I CRACK TIP ON STEEL PIPE UNDER AXIAL TENSION

ZHANG Daoming^1, ,,
LIANG Li^2, ,

1.
The College of Architecture and Civil Engineering Qiqihar University, Qiqihar 161006, Heilongjiang, China
2. School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China

摘要: 采用弹性断裂力学Westergaard 的方法,分析在轴向拉伸载荷作用下钢管的Ⅰ型裂纹尖端处的应力场. 基于Ⅰ型裂纹钢管应力场的特征,设定尖端处的应力艾雷函数,给出其应力场模型边界条件和应力场的解析函数,并利用裂纹尖端处的切平面研究裂纹尖端局部应力场,建立了钢管裂纹尖端应力场模型. 通过钢管与平板Ⅰ型裂纹应力场模型的对比,结果表明二者明显不同,钢管裂纹尖端处应力峰值影响范围仅与裂纹长度、拉应力相关.
- 钢管 /
- 应力场 /
- 裂纹 /
- 影响范围
Abstract: Based on the method of Westergaard, the mode Ⅰ crack stress field is obtained for related boundary conditions. The tangent plane at the crack tip is used as the stress field area at the pipe crack tip. The mode Ⅰ crack tip stress field and its influence area are obtained, and the differences of the crack tip stress fields are shown between the pipe and the flat plate. The theoretical result shows that the influence area of the crack tip stress field is related to the crack length and the tensile stress.
- pipe /
- stress field /
- crack /
- influence area

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