Results 211 to 220 of about 6,813 (255)
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2006
The reliability of a joint subjected to mechanical and thermal loads during processing and service constitutes a major technical problem. Joints contain flaws. The observed strength of a joint depends upon the location and size of the flaws, as well as the crack path through the joint.
Leslie Banks-Sills, Jacob Schwartz
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The reliability of a joint subjected to mechanical and thermal loads during processing and service constitutes a major technical problem. Joints contain flaws. The observed strength of a joint depends upon the location and size of the flaws, as well as the crack path through the joint.
Leslie Banks-Sills, Jacob Schwartz
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Discrete crack path prediction by an adaptive cohesive crack model
Engineering Fracture Mechanics, 2010In this contribution, an enhancement of the numerical simulation methods for cohesive crack propagation within the finite element framework is introduced. Motivated by some fundamental drawbacks of the standard procedure, which is characterised by an initial implementation of cohesive surfaces, a novel algorithmic approach is presented which allows an ...
G. Geißler, C. Netzker, M. Kaliske
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Crack path selection in piezoelectric bimaterials
Composite Structures, 1999Abstract The problem of crack path selection in piezoelectric bimaterials is considered in this paper. Based on the Stroh formulation for anisotropic material and Green’s functions for piezoelectric bimaterials, the crack problem is expressed in terms of coupled singular integral equations at first, and then the equations are used to solve for stress
Qing-Hua Qin, Yiu-Wing Mai
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[Crack path in dental amalgams].
Odontostomatologike proodos, 1991The need of amalgam to resist fracture becomes a more evident necessity when restoration margins are taken into consideration. Marginal microcracks permit bacteria to pass beneath the restoration resulting in cement base dessalution, secondary caries and pulp inflammation.
S, Oualint +2 more
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Thermoelastic Investigation of Crack Paths
2007Traditionally fracture mechanics is mostly concerned with the opening mode of crack growth. Stability and crack path problems are relatively well understood in this case and it is expected that a crack grows in its own plane. However, cracks may exist in different orientations and moreover more than one crack may be found in a structure.
R. A. Tomlinson +2 more
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2014
We analyze a kinked and curved crack in an elastic body by using the first order perturbation method, where the result is applied to a straight crack with a slightly kinked and curved crack extension in a finite body. Crack path criteria are discussed for the crack path prediction in brittle solids, which may also lead to some considerations about the ...
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We analyze a kinked and curved crack in an elastic body by using the first order perturbation method, where the result is applied to a straight crack with a slightly kinked and curved crack extension in a finite body. Crack path criteria are discussed for the crack path prediction in brittle solids, which may also lead to some considerations about the ...
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Crack-Path Effect on Material Toughness
Journal of Applied Mechanics, 1990The material-toughening mechanism based on the crack-path deflection is studied. This investigation is based on a model which consists of a macrocrack (semi-infinite crack), with a curvilinear segment at the crack tip, situated in a brittle solid. The effect of material toughening is evaluated by comparison of the remote stress field parameters, such ...
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The linear elastic analysis of cracked bodies and crack paths
Theoretical and Applied Fracture Mechanics, 2015Abstract The linear elastic analysis of cracked bodies is a Twentieth Century development, with the first papers appearing in 1907, but it was not until the introduction of the stress intensity factor concept in 1957 that widespread application to practical engineering problems became possible.
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