Determination of stress intensity factors for cracked bridge roller bearings using finite element analyses

A Method for Assessing the “Local” Accuracy of Weight Functions for Plates With Embedded Cracks

Volume 2: 11th Biennial Conference on Reliability, Stress Analysis, and Failure Prevention; 7th International Conference on Design Theory and Methodology; JSME Symposium on Design and Production; Mechanical Design Education and History; Computer-Integrated Concurrent Design Conference ◽

10.1115/detc1995-0158 ◽

1995 ◽

Author(s):

S. W. Ng ◽

K. J. Lau

Keyword(s):

Finite Element ◽

Stress Intensity ◽

Stress Intensity Factors ◽

Weight Functions ◽

Finite Element Analyses ◽

Intensity Factors ◽

Local Accuracy ◽

New Algorithms

Abstract In this paper a procedure is developed to assess the “local” accuracy of weight functions for finding stress intensity factors of centrally cracked finite plates given by Tsai and Ma (1989). It is found that the weight functions can be used to calculate stress intensity factors for practical cases, with “local” accuracy being within 6 %. In addition, weight functions generated from two finite element analyses are found to be accurate and may be used to assess new algorithms for finding weight functions.

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Determination of sharp V-notch stress intensity factors using the extended finite element method

The Journal of Strain Analysis for Engineering Design ◽

10.1177/0309324711433981 ◽

2012 ◽

Vol 47 (2) ◽

pp. 95-103 ◽

Cited By ~ 15

Author(s):

Tiantang Yu ◽

Luyang Shi

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Stress Intensity ◽

Stress Intensity Factors ◽

Extended Finite Element Method ◽

Intensity Factors ◽

Extended Finite Element ◽

Notch Stress ◽

Notch Stress Intensity Factors

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Estimation of Stress Intensity Factors due To Welding Residual Stresses for Circumferentially Cracked Pipes

Volume 6: Materials and Fabrication, Parts A and B ◽

10.1115/pvp2012-78500 ◽

2012 ◽

Author(s):

Chang-Young Oh ◽

Ji-Soo Kim ◽

Yun-Jae Kim ◽

Young-Jin Oh ◽

Kyoungsoo Lee ◽

...

Keyword(s):

Finite Element ◽

Stress Intensity ◽

Residual Stresses ◽

Stress Intensity Factors ◽

Finite Element Analyses ◽

Intensity Factors ◽

Crack Face ◽

Simple Method ◽

Weld Geometry ◽

Nonlinear Stress

This paper proposes a simple method to estimate stress intensity factors due to welding residual stresses. In this study, finite element analyses for circumferentially cracked pipe are performed to calculate stress intensity factors. Four cracked geometries and two types of weld geometry are considered. KI-solutions for the nonlinear stress distribution on the crack face were determined in accordance with codes and standards. The results are compared with KI-solutions from finite element results. It is found that proposed simple method agrees well with FE results.

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