A precise computation of stress intensity factor on the front of a convex planar crack

Oscar Ascenzi; Lorenzo Pareschi; Fausto Segala

doi:10.1002/nme.425

A precise computation of stress intensity factor on the front of a convex planar crack

Oscar Ascenzi, Lorenzo Pareschi, Fausto Segala

University of Ferrara

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

In this paper, we consider a general integral expression for mode I stress intensity factor along the fronts of convex planar cracks. For this integral approximation, we develop a simple numerical quadrature formula on every convex set Ω which allows a precise estimation of the error. This permits the use of extrapolation techniques for the accurate computation of the integral.

Original language	English
Pages (from-to)	241-261
Number of pages	21
Journal	International Journal for Numerical Methods in Engineering
Volume	54
Issue number	2
DOIs	https://doi.org/10.1002/nme.425
State	Published - 20 May 2002
Externally published	Yes

Keywords

Convex planar cracks
Extrapolation methods
Mode I stress intensity factor
Singular integrals

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10.1002/nme.425

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abstract = "In this paper, we consider a general integral expression for mode I stress intensity factor along the fronts of convex planar cracks. For this integral approximation, we develop a simple numerical quadrature formula on every convex set Ω which allows a precise estimation of the error. This permits the use of extrapolation techniques for the accurate computation of the integral.",

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AU - Pareschi, Lorenzo

AU - Segala, Fausto

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N2 - In this paper, we consider a general integral expression for mode I stress intensity factor along the fronts of convex planar cracks. For this integral approximation, we develop a simple numerical quadrature formula on every convex set Ω which allows a precise estimation of the error. This permits the use of extrapolation techniques for the accurate computation of the integral.

AB - In this paper, we consider a general integral expression for mode I stress intensity factor along the fronts of convex planar cracks. For this integral approximation, we develop a simple numerical quadrature formula on every convex set Ω which allows a precise estimation of the error. This permits the use of extrapolation techniques for the accurate computation of the integral.

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KW - Extrapolation methods

KW - Mode I stress intensity factor

KW - Singular integrals

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A precise computation of stress intensity factor on the front of a convex planar crack

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