Results 251 to 260 of about 7,391,818 (293)

Influence of the V-Notch Opening Angle on Critical Applied Force Values for the Crack Initiation from the Sharp V-Notch

Key Engineering Materials, 2014
The aim of this paper is to estimate a value of the critical applied force for a crack initiation from the sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in studied case.
Kateřina Štegnerová, Luboš Náhlík, Pavel Hutař   +2 more
openaire   +1 more source

Assessment of apex-V notches

2002
The singular stress field at the tip of an elastic sharp notch was reported by Atkinson et al. [12]. Kuang and Xu [72] presented the leading-order terms of the stress and strain fields under the J2 deformation plasticity theory for mode I plane strain cases.
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The V-notched elastic half-plane problem

Acta Mechanica, 1979
The problem of a V-notched isotropic elastic half-plane under generalized plane stress or plane strain conditions can be reduced, by using the complex variable technique, to a complex Cauchy type singular integral equation along one of the V-notch edges. This equation can be numerically solved by use of the Gauss-Jacobi method and reduction to a system
Theocaris, P. S., Ioakimidis, N. I.
openaire   +1 more source

Analysis of the Charpy V-notch test for welds

Engineering Fracture Mechanics, 2000
Abstract The ductile–brittle transition for a weld is investigated by numerical analyses of Charpy impact specimens. The material response is characterized by an elastic–viscoplastic constitutive relation for a porous plastic solid, with adiabatic heating due to plastic dissipation and the resulting thermal softening accounted for.
V. Tvergaard, A. Needleman
openaire   +1 more source

A fracture criterion for sharp V-notched samples

International Journal of Fracture, 2003
The objective of this paper is to show the advantages of the cohesivecrack model for predicting fracture of V-notched components. Criticalvalues of the generalized stress intensity factor can be obtained fromthe knowledge of the material softening function and the elastic parameters,avoiding a cumbersome experimental work.
F.J. Gómez, M. Elices
openaire   +1 more source

The V-Notch Weir for Hot Water

Journal of Fluids Engineering, 1934
Abstract This ideally simple form of weir has a wide, accurate range for heads up to about one foot, is inherently free from aeration difficulties, and has a better agreement between data from various sources than would be expected from experience with other weir forms generally.
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Vibration of Plates with Constrained V-Notches or Cracks

Journal of Engineering Mechanics, 2003
This paper reports the first known free vibration solutions for thin circular plates with V-notches having various edge conditions. The classical Ritz method is employed with 2 sets of admissible functions assumed for the transverse vibratory displacements.
O. G. McGee, A. W. Leissa, J. W. Kim, Y. S. Kim   +3 more
openaire   +1 more source

Flow of Water Over a V-Notch

Transactions of the American Society of Mechanical Engineers, 1928
Abstract In this paper the author presents a formula for finding the flow of water over V-notches with angles ranging from 90 deg. down to 27 deg., which is based on the experimental results given in D. Robert Yarnall’s paper on the “Accuracy of the V-Notch-Weir Method of Measurement,” presented before the A.S.M.E. in December, 1926.
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V-notch weir overflow: an unsteady calibration

2013
Thin-plate V-notch weirs are commonly used as measuring devices in flumes and channels. Herein, the discharge calibration of a large 90º V-notch weir was performed using an unsteady volume per time technique. The weir overflow was initially shut. The sudden opening of the gate was associated with an initial phase of transient water motion associated ...
Chanson, Hubert, Wang, Hang
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The plastic constraint of V-notched tension bars

Journal of the Mechanics and Physics of Solids, 1967
Close bounds are obtained to the plastic constraint factor for any symmetrically V-notched tension bar of rigid/plastic material under conditions of plane strain. The estimated factors are well represented by 1 + In {(ω + 1)/2} or 1 + 12 π-α, whichever is the lesser, where 2α is the notch angle and ω is the ratio of bar width to root width.
D.J.F. Ewing, R. Hill
openaire   +1 more source