Results 181 to 190 of about 1,437,001 (231)

Stress intensity factors for interacting cracks

Engineering Fracture Mechanics, 1987
Abstract Experimental stress intensity factors (SIFs) for two interacting straight cracks in plane-homogeneous regions were determined. Photoelastic data were collected from digitally sharpened isochromatic fringe patterns by using a digital image analysis system. SIFs were extracted by using the field equations derived from Williams' stress function.
A. Mehdi-Soozani, I. Miskioglu, C.P. Burger, T.J. Rudolphi   +3 more
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Stress intensity factors in fretting fatigue

The Journal of Strain Analysis for Engineering Design, 1979
Solutions are derived for mode I and mode II stress intensity factors for a crack at the edge of a sheet subjected to localized fretting forces. Both normal and tangential forces are considered. These solutions are approximated by a polynomial function of crack length, which is then used as a Green's function to derive stress intensity factors for ...
D P Rooke, D A Jones
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Extended Stress Intensity Factor Concepts

2013
The stress intensity factor concept for describing the stress field at pointed crack or slit tips is well known from fracture mechanics. It is substantially extended here in two directions. One extension refers to pointed V-notches with stress intensities depending on the notch opening angle. The loading mode related notch stress intensity factors K 1,
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Summary of Stress-Intensity Factors

1996
Abstract 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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Determination of stress intensity factors

1982
The 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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Thermo-mechanical stress intensity factors evaluation

Nuclear Engineering and Design, 2010
This paper deals with the evaluation of the static mixed-mode stress intensity factors in case of thermal and mechanical loadings. A method and a formulation based on the J-integral and the energy release rate formulation is developed. The numerical results emphasize the effects of the temperature field on the stress intensity factors; thus, we show ...
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Stress intensity factors of welded joints

Engineering Fracture Mechanics, 1993
Abstract Stress intensity factors of welded joints have been calculated for a variety of joint types and dimensional parameters. The following have been considered: non-loadcarrying transverse and longitudinal attachments, cruciform joints with K-butt and with fillet welds, and lap joints with fillet welds.
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Stress Intensity Factors for a Linear Stress Distribution

2003
The 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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Critical Stress Intensity Factor Fracture Criterion

1993
When a solid is fractured, work is performed to create new material surfaces in a thermodynamically irreversible manner. In Griffith’s theory of ideally brittle materials, the work of fracture is spent in the rupture of cohesive bonds. The fracture surface energy γ, which represents the energy required to form a unit of new material surface ...
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Stress Intensity Factor

2020
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