FE-Meshfree Coupled Method for Calculating Stress Intensity Factor of Circumferential Through-Wall Crack on Pipes

JIANG Nai-bin; ZHAO Hua; LIU Jun; LIU Cheng; LU Yue-chuan

Volume 30 Issue 5

Oct. 2009

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Article Navigation > Nuclear Power Engineering > 2009 > 30(5): 71-74

JIANG Nai-bin, ZHAO Hua, LIU Jun, LIU Cheng, LU Yue-chuan. FE-Meshfree Coupled Method for Calculating Stress Intensity Factor of Circumferential Through-Wall Crack on Pipes[J]. Nuclear Power Engineering, 2009, 30(5): 71-74.

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FE-Meshfree Coupled Method for Calculating Stress Intensity Factor of Circumferential Through-Wall Crack on Pipes

1. National Key Laboratory of Reactor System Design Technology, Nuclear Power Institute of China, Chengdu, 610041, China;
2. Department of Engineering Mechanics, Chongqing University, Chongqing, 400044, China

Received Date: 2008-08-01
Rev Recd Date: 2009-04-20

Available Online: 2025-07-28

Publish Date: 2009-10-15

Abstract

Abstract

Based on a transition matrix used to couple the finite element method and meshfree method, a coupled method was developed, in which the part with high gradient stress was set as the meshfree domain, and the remainder part was finite element domain. With this method, the stress intensity factors in one cracked through-wall pipe with circumferential crack were calculated, and the result was consistent with those calculated with ABAQUS code, which proved the feasibility and validity of the current method.
- Meshfree,
- Coupled Method,
- Through-Wall Crack,
- Stress Intensity Factor