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Summary of Stress-Intensity Factors
1996Abstract The stress-intensity concept is based on the parameter that quantifies the stresses at a crack tip. This article summarizes some stress-intensity factors for various crack geometries commonly found in structural components. Through-the-thickness cracks may be located in the middle of a plate; at the edge of a plate; or at the
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Dynamic Stress Intensity Factor
2003An infinite strip of height 2h with a semi-infinite crack is rigidly clamped along its upper and lower faces at y = ± h (Figure 1). The upper and lower faces are moved in the positive and negative y-direction over distances u0, respectively. Determine the dynamic stress intensity factor K(t) during steady state crack propagation.
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Minimax approximation to stress intensity factors with mathematica
Computers & Structures, 1992Abstract The use of minimax approximation is suggested as the best possible approach during the evaluation of stress intensity factors from the respective integral including the loading distribution and the corresponding weight/Green function. This kind of approximation is generally better than alternative methods.
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Stress intensity factors for cracked wedges
International Journal of Solids and Structures, 1981Abstract The elasticity solution to the problem of a cracked semi-infinite wedge is presented. The crack emanates from the wedge apex bisecting the wedge angle. Crack surfaces are subjected to a pair of opposing concentrated forces directed either normal or tangential to the crack plane and located an arbitrary distance from the wedge tip.
Stone, S. F., Westmann, R. A.
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Determination of stress intensity factors
1982The application of fracture mechanics principles bears largely upon the stress intensity factor. An essential part of the solution of a fracture problem in linear elastic fracture mechanics is the establishment of the stress intensity factor for the crack problem under consideration. Since the introduction of fracture mechanics much effort has been put
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The stress intensity factor of cylindrical cracks
International Journal of Engineering Science, 1995zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zbib, H. M., Hirth, J. P., Demir, I.
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On the Stress Intensity Factor for the Elliptical Crack
International Journal of Fracture, 1998Stress intensity factor (SIF) for the elliptical crack under polynomial (uniform, as a special case) loading was first given by Kassir and Sih (1975). However, their expressions contain an error, corrected by Fabrikant (1987). This correction appears to have gone largely unnoticed, and some authors still use the incorrect result. We demonstrate, on the
B. Nuller, E. Karapetian, M. Kachanov
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Stress Intensity Factors for a Linear Stress Distribution
2003The stress intensity factor for an edge crack of length a in a semi-infinite plate subjected to a pair of equal and opposite concentrated forces at a distance b from the plate edge (Figure 1) is given by [1] $$ K'_I = \frac{2} {{\sqrt \pi }}\frac{{1 + F\left( {{b \mathord{\left/ {\vphantom {b a}} \right.
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Stress intensity factors for plates in flexure
The Aeronautical Journal, 1984SummaryA method for determining stress intensity factors for cracked plates is proposed. The method uses a generalisation of Westergaard's stress functions to describe the stress intensity at the crack. Eigenfunctions of angular regions are used to satisfy the boundary conditions.
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