辽宁石油化工大学学报2017，Vol.37Issue(4)：53-56,4.DOI:10.3969/j.issn.1672-6952.2017.04.012
受内压作用的管道表面斜裂纹尖端应力强度因子分析
Analysis on Crack Tip's Stress Intensity Factor of Pipe Surface Oblique Crack Based on the Internal Pressure Effect
徐呈祥 1王伟1
作者信息
- 1. 辽宁石油化工大学 机械工程学院,辽宁 抚顺 113001
- 折叠
摘要
Abstract
Crack was one of the most dangerous pressure piping flaws.Beyond that, it was the main cause of pressure pipeline accidents.Based on related concepts of fracture mechanics, the 3-D models of pressure pipeline subjected to internal pressure and its surface oblique cracks under different Angles were established according to the ANSYS finite element software.In addition to that, the stress intensity factor of crack tip was calculated and analyzed by the finite element and the change rules between the stress intensity factor and crack Angles were concluded.According to that, the crack tip stress field strength was analyzed quantitatively.At the same time, it also provided some data supports for the study of inclined crack on the surface of pressure pipeline.关键词
压力管道/斜裂纹/有限元/应力强度因子Key words
Pressure pipe/Oblique crack/Finite element/Stress intensity factor分类
数理科学引用本文复制引用
徐呈祥,王伟..受内压作用的管道表面斜裂纹尖端应力强度因子分析[J].辽宁石油化工大学学报,2017,37(4):53-56,4.
