Finite Element Investigation of Stress Intensity Factors of Multiple Semi-Elliptical Surface Cracks in Solid Shaft

Amit R. Bedare; Sunil Bhat

doi:10.4028/www.scientific.net/AMM.367.84

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 367Finite Element Investigation of Stress Intensity...

Finite Element Investigation of Stress Intensity Factors of Multiple Semi-Elliptical Surface Cracks in Solid Shaft

Abstract:

Fatigue cracks nucleate at the surface of the shaft operating under cyclic load. These cracks then grow into semi-elliptical shapes while extending into the shaft. The paper presents numerical estimation of stress intensity factor (SIF) of such cracks in circular solid shaft when subjected to bending and twisting loads in elastic conditions. The finite element model is first validated with the help of results reported elsewhere for a single surface crack. Later on, multiple coplanar surface cracks are modeled and the effect of the number of cracks and the distance between them on SIF of the main crack is investigated. The results are in line with the expectations.Nomenclature

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Periodical:

Applied Mechanics and Materials (Volume 367)

Pages:

84-89

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.367.84

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Online since:

August 2013

Authors:

Amit R. Bedare, Sunil Bhat

Keywords:

ANSYS, Multiple Crack, Semi-Elliptical Crack, Shaft, Stress Intensity Factor (SIF)

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