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Acoustic microscopy of surface cracks
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1986 Abstract The uniqueness of the acoustic microscope lies in its ability to image the way in which acoustic waves interact with the elastic properties of a specimen with microscopic resolution. A dominant role in the contrast achieved is played by Rayleigh waves that are excited in the surface of the specimen.
Rowe, J +3 more
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On surface cracks in glasses [PDF]
Proceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1937 Abstract The fact that the rupture strength of solids is, in general, only an exceedingly small fraction—of the order of one-thousandth—of the theoretical strength has been explained on the hypothesis of submicroscopic flaws existing in the material. In a fundamental paper A. A.
Edward Neville Da Costa Andrade +1 more
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Air-Coupled Surface Wave Transmission Measurement Across A Partially Closed Surface-Breaking Crack In Concrete [PDF]
, 2011 Previous researchers have demonstrated that the transmission of surface waves is effective to estimate the depth of a surface-breaking crack in solids. However, most of the results were obtained using a well-defined crack (or notch) in laboratory.
Kee, S. H., Zhu, J. Y.
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TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 2001 In this paper, the effect of crack size, number and distance between the centers of surface cracks on the fatigue behavior of alumina has been investigated. A single crack and two or three collinear surface cracks were introduced by Vickers indenter. The crack size was changed by several indentation load. The fatigue tests were carried out under static
Akira YOSHIKAWA +3 more
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High-Speed and Low-Load Twin-Roll Casting of Al–5%Mg Strip
Metals, 2022 A conventional twin-roll caster usually casts strips at a speed slower than 2 m/min and a roll load greater than 2 kN/mm. A vertical-type high-speed twin-roll caster can cast aluminum alloy strips at a speed higher than 10 m/min and a roll load smaller ...
Kazuki Yamazaki, Toshio Haga
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AIP Advances, 2018 An elastic-plastic analysis of the mode III crack surface vicinity was performed in an infinitely wide elastic-perfectly plastic plate, in which a pair of anti-plane forces applied at an arbitrary point on the crack surface.
Feng Huang +7 more
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Propagation of surface initiated rolling contact fatigue cracks in bearing Steel [PDF]
, 2016 Surface initiated rolling contact fatigue, leading to a surface failure known as pitting, is a life limiting failure mode in many modern machine elements, particularly rolling element bearings.
Kadiric, A, Olver, A, Rycerz, P
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Fast crack propagation by surface diffusion [PDF]
Physical Review E, 2003 We present a continuum theory which describes the fast growth of a crack by surface diffusion. This mechanism overcomes the usual cusp singularity by a self-consistent selection of the crack tip radius. It predicts the saturation of the steady state crack velocity appreciably below the Rayleigh speed and tip blunting.
Brener, E. A., Spatschek, R.
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Applied Sciences, 2022 In this paper, the scattered surface waves created by a surface crack in a homogeneous, isotropic, viscoelastic half space within a plane strain condition was studied.
Li Zheng +3 more
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Crack Front Waves and the dynamics of a rapidly moving crack
, 2001 Crack front waves are localized waves that propagate along the leading edge of a crack. They are generated by the interaction of a crack with a localized material inhomogeneity.
A. B. Movchan +29 more
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