Stress and Fracture Strength Analysis for Three-Way Pipes  

作　　者：XU Jing-jing, WU Yi-min School of Electromechanical Engineering and Automation, Shanghai University, Shanghai 200072, China 

出　　处：《Advances in Manufacturing》2000年第S1期11-15,共5页先进制造进展（英文版）

摘　　要：Three-way pipes, T and Y pipes, are very important connecting components in pipeline systems, their strength are related to the safety of pipelines. In the case that crack is not detected in the three-way pipe, ANSYS finite element program version 5.6 is applied to study the stress distribution of the three-way pipe and to obtain the optimum fillet radius in the crotch region of the two pipes. The reasonable intersection angle of the two pipes is also obtained. In the case that a surface crack is detected in the three-way pipe, the maximum stress intensity factor (SIF) near the front of the surface crack is studied.Three-way pipes, T and Y pipes, are very important connecting components in pipeline systems, their strength are related to the safety of pipelines. In the case that crack is not detected in the three-way pipe, ANSYS finite element program version 5.6 is applied to study the stress distribution of the three-way pipe and to obtain the optimum fillet radius in the crotch region of the two pipes. The reasonable intersection angle of the two pipes is also obtained. In the case that a surface crack is detected in the three-way pipe, the maximum stress intensity factor (SIF) near the front of the surface crack is studied.

关 键 词：three-way pipes intersection angle CRACK fracture strength stress intensity factor (SIF) Kscc 

分 类 号：TB121[理学—工程力学]