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Origin of crack tip instabilities [PDF]
Journal of the Mechanics and Physics of Solids, 1995 This paper demonstrates that rapid fracture of ideal brittle lattices naturally involves phenomena long seen in experiment, but which have been hard to understand from a continuum point of view. These idealized models do not mimic realistic microstructure, but can be solved exactly and understood completely.
Marder, M., Gross, Steve
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Crack Tip Interpolation, Revisited
SIAM Journal on Applied Mathematics, 1998 Using Williams's results for displacements \(u_k(r,\theta)=a_k+b_k(\theta)r^{1/2}+c_k(\theta)r+O(r^{3/2})\), the authors investigate crack tip singularities. It is proved that the coefficients of linear terms satisfy the relation \(c_k(\pi)=c_k(-\pi)\).
Gray, L. J., Paulino, Glaucio H.
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Crack-tip models by Irwin and Dugdale for hydroxyl-damaged crack-tip zones
, 2021 Due to the hydroxyl generation, the silica network ahead of crack tips is damaged. The consequence is a damaged crack-tip zone showing a reduced Young’s modulus. The linear-elastic fracture mechanical treatment by application of stress intensity factors becomes doubtful especially for large zones.
Fett, T., Schell, K. G., Bucharsky, C.
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Dental Materials, 2018 To quantify the extent of crack-tip plasticity, crack opening displacement (COD) and crack bridging for crack growth perpendicular (HAH) and parallel (RAR) to the tubules in elephant dentin under both hydrated and dry conditions to better understand their influence on intrinsic and extrinsic toughening during crack growth.Compact tension test-pieces ...
Lu, Xuekun +2 more
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Automatic Crack Length Measurement Using Crack Tip Singularity.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1991 Automatic crack length measuring equipment was developed using the crack tip singularity. The crack tip location was determined by comparing the measured strain distribution using multiple foil strain gauges and the theoretical strain distribution around the crack tip. The accuracy of crack length measurement was 0.09mm (standard deviation).
Yoshiyuki KONDO, Seishiro TOMIOKA
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Crack growth criteria and crack tip models
, 1988 Summary: The current status of crack tip characterizations is reviewed. Several unresolved areas for further research are identified. Singular fields for stationary and moving crack tips in different nonlinear materials are reviewed and special emphasis is put on the extension of the region where these fields dominate.
Nilsson, Fred, Ståhle, P.
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Effect of crack propagation on crack tip fields
Frattura ed Integrità Strutturale, 2013 Crack closure influences fatigue crack growth rate and must be included in the design of components. Plasticity induced crack closure is intimately linked with the crack tip plastic deformation, which becomes residual as the crack propagates. The objective here is to study numerically the effect of crack propagation on crack tip fields.
Antunes Fv +3 more
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Guest editorial: “Crack Tip Fields 4” [PDF]
Fatigue & Fracture of Engineering Materials & Structures, 2018 Thierry Palin‐Luc +6 more
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Guest Editorial: Characterisation of crack tip fields [PDF]
International Journal of Fatigue, 2014 M. N. James +5 more
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