Results 211 to 220 of about 336,762 (252)
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Grain size effects on notch sensitivity
International Journal of Fatigue, 2015Abstract This work presents experimental results on the fatigue behavior of cracks growing from circular notches under axial loading conditions for a very wide range of notch size to grain size ratios, including cases where the notch size is of the order of, or even smaller, than the grain size.
P. Lorenzino, A. Navarro
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Notch effect and brittle-ductile transition
Materials Science, 1998We present the fresults of the investigation of the effect of notches on the brittle-ductile transition in the process of fracture of structural materials. It is shown that the local elastoplastic state of a material in the vicinity of the notch can be described by using the corresponding stress intensity factorsK I σ , strain intensity factorsK i e ...
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Effect of notch dimension on the fatigue life of V-notched structure
Nuclear Engineering and Design, 2011Abstract The stress singularity degree associated to a V-notch has a great influence on the fatigue life of V-notched structure. The growth rate of the crack initiated at the tip of a V-notch depends on the stress singularity of the V-notch. The fatigue life accompanying with this small crack will represent a large amount of the total fatigue life ...
Cheng Chang-zheng +3 more
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Factors influencing temporal effects with notched-noise maskers
Hearing Research, 1992Temporal effects in simulataneous masking were studied by measuring the reduction in the amount of masking produced by a gated masker when that masker was preceded by a 400-ms noise (the precursor) that was usually spectrally identical to the masker. The signal frequency (fs) was 1.0 or 4.0 kHz.
M L, Hicks, S P, Bacon
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Effects of cracks and notches: collapse
1989In Linear Elastic Fracture Mechanics (LEFM; Chapter 3) as well as in Elastic-Plastic Fracture Mechanics (EPFM; Chapter 4) the analysis of fracture is based on a parameter representing the crack tip stress field; while the quantity used in EPFM is actually the strain energy release rate, this can be shown to be equivalent to a stress field parameter. In
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Notch flexure hinges: An effective theory
Review of Scientific Instruments, 2002This article presents effective tractable equations for rotational compliance (stiffness) of a simple monolithic flexure hinge with circular (radius R and crosspiece thickness t), elliptical [at semiaxis ax, ay, elliptical ratio ε (=ax/ay)] and other cross sections.
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Effect of notch on ductile fracture
International Journal of Fracture Mechanics, 1971The present work is an attempt towards a proper understanding of the fracture mechanics of ductile materials. Experiments were carried out to find the notch ductility of four materials: stainless steel, brass, copper, (all annealed) and mild steel (normalized). The crack propagation takes place when the strain just ahead of the crack reaches a critical
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Notch Effect in High Cycle Fatigue
2001This paper presents a different approach for the estimation of fatigue life duration of notched shafts. The traditional approach, which is based on the notch radius and the stress concentration factor, is not applicable for all stress concentration geometries, for example shafts with key-seats.
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Notch Effects, Stress State, and Ductility
Journal of Engineering Materials and Technology, 1978A review of the literature on testing of notched specimens is provided with emphasis on short-term notched bar tension tests. The effects of notch geometry, stress state, and smooth-bar tensile properties on notched ductility, notch sensitivity, and mode of fracture are discussed.
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