Results 11 to 20 of about 708,486 (305)

Effect of Strain Hardening on Increase in Collapse Pressure during the Manufacture of ERW Pipe

open access: yesApplied Sciences, 2020
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

open access: yesUltrasonics Sonochemistry, 2022
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]

open access: yesPhysical Review B, 1993
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
openaire   +3 more sources

Collapse of Corroded Pipelines under Combined Tension and External Pressure. [PDF]

open access: yesPLoS ONE, 2016
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

open access: yesMaterials, 2022
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
openaire   +3 more sources

Study of surface tension effects on near-wall cavitation bubble collapse with a pseudopotential lattice Boltzmann model

open access: yesAIP Advances, 2022
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]

open access: yes, 2005
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

open access: yesGeofluids, 2023
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]

open access: yes, 1991
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]

open access: yesInternational Journal of Modern Physics D, 2005
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

Home - About - Disclaimer - Privacy