Results 11 to 20 of about 708,486 (305)
Effect of Strain Hardening on Increase in Collapse Pressure during the Manufacture of ERW Pipe
Plastic deformation during the manufacture process of electric resistance welded (ERW) pipe determines the stress–strain relationship of the steel pipe, which affects the collapse pressure of offshore pipelines.
Seong-Wook Han +3 more
doaj +1 more source
Collapse pressure measurement of single hollow glass microsphere using single-beam acoustic tweezer
Microbubbles are widely used in medical ultrasound imaging and drug delivery. Many studies have attempted to quantify the collapse pressure of microbubbles using methods that vary depending on the type and population of bubbles and the frequency band of ...
Jinhee Yoo +4 more
doaj +1 more source
X-ray study of pressure-collapsed fullerite [PDF]
X-ray-diffraction studies are described for a new phase of carbon called collapsed fullerite (CF) that was produced by application of high pressure to fullerite (${\mathrm{C}}_{60}$). At \ensuremath{\sim}20 GPa there is an irreversible transition to a phase that has neither the (111) Bragg peak of diamond nor any of the Bragg peaks associated with the ...
Kosowsky, S. D. +5 more
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Collapse of Corroded Pipelines under Combined Tension and External Pressure. [PDF]
In this work, collapse of corroded pipeline under combined external pressure and tension is investigated through numerical method. Axially uniform corrosion with symmetric imperfections is firstly considered.
Hao Ye, Sunting Yan, Zhijiang Jin
doaj +1 more source
Magnetic Collapse in Fe3Se4 under High Pressure
Electronic structure and magnetic properties of Fe3Se4 are calculated using the density functional approach. Due to the metallic properties, magnetic moments of the iron atoms in two nonequivalent positions in the unit cell are different from ionic values for Fe3+ and Fe2+ and are equal to M1=2.071μB and M2=−2.042μB, making the system ferrimagnetic ...
Lyudmila V. Begunovich +2 more
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A lattice Boltzmann pseudopotential cavitation model with tunable surface tension and large density and viscosity coefficient ratios was used to simulate near-wall cavitation bubble collapse.
Jinchao He +5 more
doaj +1 more source
Plastic collapse of pipe bends under combined internal pressure and in-plane bending [PDF]
Plastic collapse of pipe bends with attached straight pipes under combined internal pressure and in-plane closing moment is investigated by elastic–plastic finite element analysis.
Li, H., Mackenzie, D., Robertson, A.C.
core +1 more source
Analysis of the Influence of Groundwater Level Fluctuation on Karst Soil Cave Collapse
Artificial water pumping and rainfall will induce groundwater level fluctuations, leading to large-scale karst collapse. Therefore, the combination of physical model test and FLAC3D numerical simulation is adopted to simulate the soil cave collapse ...
Xuejun Chen, Mingming Xue, Yu Song
doaj +1 more source
Large water-hammer pressure for column separation in pipelines [PDF]
Water-hammer pressures in a pipeline due to the collapse of a vapor cavity adjacent to a valve are investigated. A water-hammer event is initiated by the closure of a valve in a simple reservoir-pipeline-valve system.
Simpson, A., Wylie, E.
core +1 more source
ROLE OF PRESSURE IN QUASI-SPHERICAL GRAVITATIONAL COLLAPSE [PDF]
We study quasi-spherical Szekeres space–time (which possess no killing vectors) for perfect fluid, matter with tangential stress only and matter with anisotropic pressure respectively. In the first two cases cosmological solutions have been obtained and their asymptotic behavior have been examined while for anisotropic pressure, gravitational collapse
Chakraborty, Subenoy +2 more
openaire +3 more sources

