Results 251 to 260 of about 1,306,615 (288)

Dynamic Measurement of Crack-Tip Opening Displacement

1988
Crack opening displacements were measured at two positions very close to the tip of a crack in three-point bend specimens that were loaded explosively. Indentations were placed across the fatigue precrack at locations 100 μm and 200 μm behind the tip. These indentations, when illuminated with a laser, generate fringe patterns in space, and the motion ...
WN Sharpe, Z Waclawiw, AS Douglas
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A geometrical theory of diffraction for crack-opening displacements

Wave Motion, 1988
We present a geometrical theory of diffraction which predicts the crack- opening displacements associated with the scattering of waves by a crack in a homogeneous, isotropic, linearly elastic medium. For the two- dimensional problem of scattering of plane waves by a crack of finite width, this theory agrees with the leading-order term in the asymptotic
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Crack opening displacement measurements at elevated temperatures

Journal of Physics E: Scientific Instruments, 1970
Equipment has been developed for assessing the fracture toughness properties of steels at temperatures up to 700?C. This is achieved by the direct measurement of the opening of the faces of a pre-existing notch in fatigue cracked specimens under constant load conditions.
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Determination of crack-opening displacement by the method of caustics

Journal of Strain Analysis, 1974
A new experimental technique based on the method of caustics is presented for the measurement of the distance between the lips of a crack near the crack-tip. The two parts of the caustic formed by reflections from the front and rear faces of the specimen lie at a distance from each other. The gap between these parts depends on the total c.o.d.
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Critical Crack-Tip Opening Displacement of SCLC

2018
The aim of this study is to consider the effects of water/binder ratio on fracture behavior of self-compacting lightweight concrete (SCLC). To do so, four mixes with constant nominal size of aggregate (d a = 12.5 mm) have been prepared such that the weight of aggregate and portion of coarse aggregate to fine aggregate were designed to be constant ...
Moosa Mazloom, Mohammad Karamloo
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Interrelation of crack opening displacement and

Engineering Fracture Mechanics, 1979
S.A. Paranjpe, S. Banerjee
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The displacement discontinuity method in the analysis of open cracks

Meccanica, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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The opening of a crack by displacements applied to its surface

International Journal of Fracture Mechanics, 1970
If only a continuous distribution of edge dislocations is used to represent the opening of a crack by a prescribed normal displacement such that the body deforms in a plane strain mode, there is a corresponding transverse displacement of points on the crack surface; it is therefore impossible, with dislocations alone, to discuss situations where both ...
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Measurement of Crack Tip Opening Displacement of Paper

Journal of Packaging Science & Technology, Japan, 2000
Crack opening displacement (COD) on double edge notched (DEN), single edge notched (SEN) and center notched (SCN) specimens with various crack length was quantitatively analyzed by using video-microscopy for a machine-grazed paper. A linear relationship appears between COD and the distance from the crack tip throughout the testing period for all ...
Takagi, Kazuyoshi, Tanaka, Atsushi, Yamauchi, Tatsuo   +2 more
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The crack growth rate and crack opening displacement of EH-36 steel under low-cycle fatigue loading

Ocean Engineering, 2023
Yuelin Song
exaly