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Theoretical crack path prediction
Fatigue & Fracture of Engineering Materials & Structures, 2004ABSTRACTIn many practical cases, the crack growth leads to abrupt failure of components and structures. For reasons of a reliable quantification of the endangerment due to sudden fracture of a component, therefore, it is of enormous importance to know the threshold values, the crack paths and the growth rates for the fatigue crack growth as well as the
H. A. RICHARD, M. FULLAND, M. SANDER
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International Journal of Fatigue, 1995
Abstract The main features of the path taken by a propagating fatigue crack are discussed. It is assumed that a material is homogeneous and isotropic on a macroscopic scale, that behaviour is essentially elastic, and that the initial crack is ‘long’. Under these conditions the path taken by a propagating fatigue crack is reasonably well understood in
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Abstract The main features of the path taken by a propagating fatigue crack are discussed. It is assumed that a material is homogeneous and isotropic on a macroscopic scale, that behaviour is essentially elastic, and that the initial crack is ‘long’. Under these conditions the path taken by a propagating fatigue crack is reasonably well understood in
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The linear elastic analysis of cracked bodies, crack paths and some practical crack path examples
Engineering Fracture Mechanics, 2016Abstract The linear elastic analysis of cracked bodies is a Twentieth Century development, with the first papers appearing in 1907. The stress intensity factor concept, introduced in 1957, developed rapidly in the 1960s, with widespread application to practical problems. Finite element analysis had a significant influence on the development of linear
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2014
In relation to fatigue crack growth, it is observed that long cracks under mixed mode loading conditions branch to follow the direction along which \(\Delta k_{\text{II}}\) is zero, but some results against this local symmetry criterion are also reported.
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In relation to fatigue crack growth, it is observed that long cracks under mixed mode loading conditions branch to follow the direction along which \(\Delta k_{\text{II}}\) is zero, but some results against this local symmetry criterion are also reported.
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2021
Simple probabilistic models of fracture of 3D polycrystals involving transgranular and intergranular cracks are based on undamaged paths and appropriate percolation thresholds. In a second part, theoretical extensions of phase field models for crack initiation and propagation to the case of locally heterogeneous and anisotropic fracture energy are ...
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Simple probabilistic models of fracture of 3D polycrystals involving transgranular and intergranular cracks are based on undamaged paths and appropriate percolation thresholds. In a second part, theoretical extensions of phase field models for crack initiation and propagation to the case of locally heterogeneous and anisotropic fracture energy are ...
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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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Computational crack path prediction
Theoretical and Applied Fracture Mechanics, 1985Abstract A computer program has been developed for the numerical prediction of curved crack growth paths under proportional loading conditions. The numerical prediction is performed by the step-by-step method in cooperation with the stress analysis ahead of the crack tip and the determination of the curved increment of the crack growth.
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Asynchronous cracking with dissimilar paths in multilayer graphene
Nanoscale, 2017Multilayer graphene consists of a stack of single-atomic-thick monolayer graphene sheets bound with π–π interactions and is a fascinating model material opening up a new field of fracture mechanics.
Bongkyun Jang +5 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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Notes on the paths and stability of cracks
International Journal of Fracture Mechanics, 1966The stress distribution at the tip of a crack can be expanded as a power series. The first term, usually called the stress intensity factor, determines the initiation of fracture in a brittle material. In this paper it is shown that the second, third and fourth terms have the following effects: (a) the second term controls the stability of the ...
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