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Journal of Applied Sciences
  Year: 2012 | Volume: 12 | Issue: 10 | Page No.: 1020-1025
DOI: 10.3923/jas.2012.1020.1025
 
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Determination of SIF for a Crack Emanating From a Rivet Hole in a Plate using Displacement Extrapolation Method

A. Anand, L.J. Sudev and H.V. Lakshminarayana

Abstract:
Modern aircraft structures are designed using a damage tolerance philosophy. This design philosophy envisions sufficient strength and structural integrity to sustain major damage and to avoid catastrophic failure. The most likely places for crack initiating and development are the rivet holes, due to high stress concentration in this area. Such cracks may grow in time and reduces the lifetime of the sheet. The Stress Intensity Factor (SIF) is one the most important parameters in fracture mechanics analysis. The objective of this work is to determine SIF (plane stress) for a crack emanating from a rivet hole in a plate Finite Element Method (FEM). From this study it was observed that the value of SIF rises suddenly when the crack tip is near to the hole and drops down as the crack tip move far from the hole. The SIF values evaluated for different crack length is compared with the analytical values obtained from Bowie’s equation. This provides important information for subsequent studies such as the crack growth rate determination and prediction of residual strength.
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How to cite this article:

A. Anand, L.J. Sudev and H.V. Lakshminarayana, 2012. Determination of SIF for a Crack Emanating From a Rivet Hole in a Plate using Displacement Extrapolation Method. Journal of Applied Sciences, 12: 1020-1025.

DOI: 10.3923/jas.2012.1020.1025

URL: https://scialert.net/abstract/?doi=jas.2012.1020.1025

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