Results 1 to 10 of about 30,771 (303)
Journal of Materials Research and TechnologyThe evolution of residual stresses (RS) at a crack tip and associated changes in crack shielding effects during fatigue crack growth (FCG) has a first order effect on the fatigue life of welded joints.
Zhe Zhang +3 more
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Explainable machine learning for precise fatigue crack tip detection. [PDF]
Sci Rep, 2022 Data-driven models based on deep learning have led to tremendous breakthroughs in classical computer vision tasks and have recently made their way into natural sciences.
Melching D +3 more
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Crack tip strain evolution and crack closure during overload of a growing fatigue crack [PDF]
Fracture and Structural Integrity, 2017 It is generally accepted that fatigue crack growth is retarded after an overload, which has been explained either by plasticity-induced crack closure or near-tip residual stress.
De-Qiang Wang +2 more
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A numerical study of non-linear crack tip parameters [PDF]
Fracture and Structural Integrity, 2015 Crack closure concept has been widely used to explain different issues of fatigue crack propagation. However, different authors have questioned the relevance of crack closure and have proposed alternative concepts.
F.V. Antunes +3 more
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Medžiagotyra, 2022 This paper deals with the effect of initial crack tip shape, plastic compressibility, and strain softening on near-tip stress-strain fields for a mode I crack subjected to fatigue loading under plane strain and small scale yielding. A finite strain-based
Md Intaf ALAM +3 more
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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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Near tip strain evolution of a growing fatigue crack [PDF]
Fracture and Structural Integrity, 2015 Near tip full-field strains in a growing fatigue crack have been studied in situ using the Digital Image Correlation (DIC) technique in a compact tension specimen of stainless steel 316L under tension-tension cyclic loading.
M.-L. Zhu, Y.-W. Lu, C. Lupton, J. Tong
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Study of overload effects in bainitic steel by synchrotron X-ray diffraction [PDF]
Fracture and Structural Integrity, 2013 This work presents an in-situ characterisation of crack-tip strain fields following an overload by means of synchrotron X-ray diffraction. The study is made on very fine grained bainitic steel, thus allowing a very high resolution so that small changes ...
P. Lopez-Crespo +5 more
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2D mapping of plane stress crack-tip fields following an overload [PDF]
Fracture and Structural Integrity, 2015 The evolution of crack-tip strain fields in a thin (plane stress) compact tension sample following an overload (OL) event has been studied using two different experimental techniques.
P. J. Withers +5 more
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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 \(c_k(\pi)=c_k(-\pi)\).
Glaucio H. Paulino, Leonard J. Gray
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