Stress Intensity Factors Along Three Dimensional Elliptical Crack Fronts
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Stress Intensity Factors Along Three Dimensional Elliptical Crack Fronts
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Author : M. Gosz
language : en
Publisher:
Release Date : 1998
Stress Intensity Factors Along Three Dimensional Elliptical Crack Fronts written by M. Gosz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Airplanes categories.
The objective of the present investigation is to determine the mode I stress-intensity factors along two symmetric surface cracks emanating from a centrally located hole in a rectangular plate (the so-called Round Robin Problem) using the domain integral method. In order to validate the present three-dimensional domain integral implementation, two comparisons were made with benchmark solutions. We first considered the problem of an elliptical crack embedded in a rectangular plate. For plate dimensions much greater than the largest characteristic dimension of the elliptical crack, we compared the present finite element results with the solution of Irwin (1962) for an elliptical crack embedded in an infinitely extended solid. Next, we considered the problem of a quarter-elliptical comer crack in a rectangular, plate and compared the results with those of Newman and Raju (1983). Excellent agreement was obtained for both benchmark comparisons.
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies Subjected To Tension And Bending Loads
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Author : J. C. Newman
language : en
Publisher:
Release Date : 1984
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies Subjected To Tension And Bending Loads written by J. C. Newman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies
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Author :
language : en
Publisher:
Release Date : 1981
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with categories.
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies
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Author : JC. Newman
language : en
Publisher:
Release Date : 1983
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies written by JC. Newman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Corner cracks categories.
This paper presents empirical stress-intensity factor equations for embedded elliptical cracks, semielliptical surface cracks, quarterelliptical corner cracks, semielliptical surface cracks at a hole, and quarterelliptical corner cracks at a hole in finite plates subjected to remote tensile loading. These equations give stress-intensity factors as a function of parametric angle, crack depth, crack length, plate thickness, and, where applicable, hole radius. The stress-intensity factors used to develop the equations were obtained from current and previous three-dimensional finite-element analyses of these crack configurations. A wide range of configuration parameters was included in the equations. The ratio of crack depth to plate thickness ranged from 0 to 1, the ratio of crack depth to crack length ranged from 0.2 to 2, and the ratio of hole radius to plate thickness ranged from 0.5 to 2. The effects of plate width on stress-intensity variations along the crack front also were included, but generally were based on engineering estimates. For all combinations of parameters investigated, the empirical equations were generally within 5 percent of the finite-element results, except within a thin "boundary layer" where the crack front intersects a free surface. However, the proposed equations are expected to give a good estimate in this region because of a study made on the boundary-layer effect. These equations should be useful for correlating and predicting fatigue crack growth rates as well as in computing fracture toughness and fracture loads for these types of crack configurations.
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies Subjected To Tension And Bending Loads
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Author :
language : en
Publisher:
Release Date : 1984
Stress Intensity Factor Equations For Cracks In Three Dimensional Finite Bodies Subjected To Tension And Bending Loads written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Metal Ceramic Interfaces
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Author : M. Rühle
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Metal Ceramic Interfaces written by M. Rühle and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
As engineering materials and structures often contain a metal or metallic alloy bonded to a ceramic, the resultant interface must be able to sustain mechanical forces without failure. They also play an important role in oxidation or reduction of materials. The workshop on 'Bonding, Structure and Mechanical Properties of Metal/Ceramic Interfaces' was held in January 1989 within the Acta/Scripta Metallurgica conference series. It drew together an international collection of 70 scientists who discussed a wide range of issues related to metal-ceramic interfaces. The sessions were divided into 7 categories: structure and bonding, chemistry at interfaces, formation of interfaces, structure of interfaces, thermodynamics/atomistics of interface fracture, mechanics of interface cracks, and fracture resistance of bimaterial interfaces. Within these headings attention was paid to grain boundaries, the influence of chemical processes on the behaviour of interfaces, diffusion bonding, characterization of fracture, and crack propagation by fatigue and by stress corrosion. The book presents a useful reference source for materials scientists, physicists, chemists, and mechanical engineers who are concerned with the roles and properties of interfaces.
Three Dimensional Crack Problems
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Author : M.K. Kassir
language : en
Publisher: Springer
Release Date : 1975-04-30
Three Dimensional Crack Problems written by M.K. Kassir and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975-04-30 with Science categories.
Experimental Validation Testing Of Numerical Prediction Techniques For Three Dimensional Fracture And Fatigue
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Author : William T. Riddell
language : en
Publisher:
Release Date : 1995
Experimental Validation Testing Of Numerical Prediction Techniques For Three Dimensional Fracture And Fatigue written by William T. Riddell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Fracture mechanics categories.
A crack does not always preclude safe use of a structure. Nearly all matter contains flaws at some scale. Therefore, we will find a crack in almost any structure if we look hard enough. With this in mind, a more logical response to a cracked structure is to ask "will this crack affect the use and/or safety of this structure?" We need to understand fracture mechanics to answer this question, which is the heart of damage tolerant design.
Selected Papers On Crack Tip Stress Fields
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Author : Robert Joseph Sanford
language : en
Publisher:
Release Date : 1997
Selected Papers On Crack Tip Stress Fields written by Robert Joseph Sanford and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Science categories.
Topics in this volume include: Westergaard stress functions for severe periodic crack problems; the stress intensity factors and crack profiles for centre and edge cracks in plates subject to arbitrary stesses; and central crack in plane ortotropic rectangular sheet.
Three Dimensional Finite Element Analysis Of Cyclic Fatigue Crack Growth Of Multiple Surface Flaws
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Author : Corneliu Manu
language : en
Publisher:
Release Date : 1980
Three Dimensional Finite Element Analysis Of Cyclic Fatigue Crack Growth Of Multiple Surface Flaws written by Corneliu Manu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Finite element method categories.