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Ultrasonics, 2023
Thermal stress is one of the major causes of failure of engineering structures and its measurement has attracted more attention in recent years. The ultrasonic wave method is very promising in stress measurement due to its non-destructive nature and easy manipulation.
Mingtong Chen, Faxin Li, Hao Qiu
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Thermal stress is one of the major causes of failure of engineering structures and its measurement has attracted more attention in recent years. The ultrasonic wave method is very promising in stress measurement due to its non-destructive nature and easy manipulation.
Mingtong Chen, Faxin Li, Hao Qiu
exaly +3 more sources
Wall Shear Stress and Differential Pressure in Large-Diameter Horizontal Multiphase Pipelines
Journal of Energy Resources Technology, Transactions of the ASME, 2000When a slug is formed a mixing vortex is created which contains pulses of bubbles which are shot toward the bottom of the pipe where they may impact and collapse. Bubble collapse creates high localized pressure, temperature, and wall shear stress, which cause a reduction in corrosion inhibitor efficiency. The average wall shear stress can be calculated
Lisa C. Maley, W. Paul Jepson
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Deep heterogeneity of the stress state in the horizontal shear zones
Izvestiya, Physics of the Solid Earth, 2014The formation structures of brittle destruction in a rock layer above an active strike-slip fault in the crystalline basement is studied. The problem is analyzed from the standpoint of loading history, when after the stage of pure gravitational loading, an additional strain state of uniform horizontal shear of both the layer and underlying basement ...
Yu. L. Rebetsky, A. V. Mikhailova
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Interfacial shear stress and momentum transfer in horizontal gas-liquid flow
Chemical Engineering Science, 1966Abstract The stratified flow of an air stream and a water film in a closed horizontal channel of rectangular section, 16 in.by 2 in., has been investigated for air velocities ranging between 6 and 120 ft/sec and for superficial water rates between 0·000375 and 0·0210 ft 3 /ft sec. The interfacial shear stress has been measured, and has been separated
T.N. Smith, R.W.F. Tait
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Surface-residual-stress evaluation using horizontally polarized shear waves
Journal of Applied Physics, 1984In this paper a new theory and experimental method are described for evaluation of surface residual stresses in inhomogeneous, anisotropic materials. The method is based on the use of horizontally polarized shear waves (SH waves) that propagate at a grazing angle with respect to the surface of a sample.
R. B. King, C. M. Fortunko
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The strength of the Earth's crust under horizontal shear stress
Journal of Geophysical Research, 1964Recent theoretical expressions for the change in stress distribution caused by strike-slip faulting are applied to five real faults, and estimates are made of the maximum shear stress relieved in each case. The calculated values lie between 107 and 108 dynes/cm2, and reasonable refinements of the assumptions involved in the calculation (particularly in
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Diffractions of Horizontal Shear Waves by a Parabolic Cylinder and Dynamic Stress Concentrations
Journal of Applied Mechanics, 1966Diffractions of horizontally polarized shear waves by a parabolic cylinder are studied by using the expansion of solutions to the wave equation in terms of Weber’s functions. The parabolic cylinder is either empty or filled with rigid material. Also, the problems of a semi-infinite line crack and a semi-infinite rigid ribbon as two limiting cases are ...
S. A. Thau, Yih-Hsing Pao
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Monitoring In-situ Horizontal Stress in Soil Using Shear Waves
Near Surface 2007 - 13th EAGE European Meeting of Environmental and Engineering Geophysics, 2007We have developed a laboratory facility where very small change in stress in soft soil can be accurately implemented. The effect of such small stress change on seismic velocity has been measured. Our observation suggests that change in shear-wave velocity can be used to monitor change in in-situ horizontal stress, even if the magnitude of stress change
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Wall and interfacial shear stress in stratified flow in a horizontal pipe
AIChE Journal, 1987AbstractExperimental values are presented for the wall and interfacial shear stresses in stratified gas‐liquid flow in a pipe. The wall and Reynolds shear stresses were measured using a hot‐film anemometry technique. The interfacial shear stress was determined using two methods: from a momentum balance, using the wall shear stresses and void fraction ...
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