A STUDY OF THE INTERACTION AND COALESCENCE OF TWO COPLANAR FATIGUE CRACKS IN BENDING

W. O. Soboyejo; K. Kishimoto; R. A. Smith; J. F. Knott

doi:10.1111/j.1460-2695.1989.tb00524.x

A STUDY OF THE INTERACTION AND COALESCENCE OF TWO COPLANAR FATIGUE CRACKS IN BENDING

W. O. Soboyejo
, K. Kishimoto
, R. A. Smith
, J. F. Knott

President

SUNY Polytechnic Institute

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

68 Scopus citations

Abstract

Abstract— This paper reports the results of an experimental and numerical investigation of the interaction and coalescence of two coplanar semi‐elliptical cracks. Fatigue crack growth data were obtained from a four‐point bend specimen using the direct current potential difference method and a beachmarking technique. A finite element simulation of the experimental conditions was also performed. Crack advance was computed from the Paris equation on a step by step basis. Good agreement between experimental fatigue crack growth data and the finite element predictions is demonstrated.

Original language	English
Pages (from-to)	167-174
Number of pages	8
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	12
Issue number	3
DOIs	https://doi.org/10.1111/j.1460-2695.1989.tb00524.x
State	Published - May 1989

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10.1111/j.1460-2695.1989.tb00524.x

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abstract = "Abstract— This paper reports the results of an experimental and numerical investigation of the interaction and coalescence of two coplanar semi‐elliptical cracks. Fatigue crack growth data were obtained from a four‐point bend specimen using the direct current potential difference method and a beachmarking technique. A finite element simulation of the experimental conditions was also performed. Crack advance was computed from the Paris equation on a step by step basis. Good agreement between experimental fatigue crack growth data and the finite element predictions is demonstrated.",

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AU - Knott, J. F.

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N2 - Abstract— This paper reports the results of an experimental and numerical investigation of the interaction and coalescence of two coplanar semi‐elliptical cracks. Fatigue crack growth data were obtained from a four‐point bend specimen using the direct current potential difference method and a beachmarking technique. A finite element simulation of the experimental conditions was also performed. Crack advance was computed from the Paris equation on a step by step basis. Good agreement between experimental fatigue crack growth data and the finite element predictions is demonstrated.

AB - Abstract— This paper reports the results of an experimental and numerical investigation of the interaction and coalescence of two coplanar semi‐elliptical cracks. Fatigue crack growth data were obtained from a four‐point bend specimen using the direct current potential difference method and a beachmarking technique. A finite element simulation of the experimental conditions was also performed. Crack advance was computed from the Paris equation on a step by step basis. Good agreement between experimental fatigue crack growth data and the finite element predictions is demonstrated.

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U2 - 10.1111/j.1460-2695.1989.tb00524.x

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ER -

A STUDY OF THE INTERACTION AND COALESCENCE OF TWO COPLANAR FATIGUE CRACKS IN BENDING

Abstract

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