Results 291 to 300 of about 5,144,321 (345)
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Pressure-induced homothetic volume collapse in silicon clathrates
Europhysics Letters (EPL), 2005The high-pressure properties of the Ba-doped silicon clathrate Ba8Si46 have been investigated combining X-ray diffraction and X-ray absorption spectroscopy. A pressure-induced isostructural phase transition associated with an important volume collapse takes place at 11.5–14 GPa.
San Miguel, A. +11 more
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Collapse pressure of randomly corroded spherical shell
Ocean Engineering, 2022Zhongwei Zhao +3 more
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Collapsing Cristobalitelike Structures in Silica Analogues at High Pressure
Physical Review Letters, 2003The cristobalitelike forms of the ternary silica analogues BPO4 and BAsO4 were investigated at high pressure by x-ray diffraction and theoretical methods. The behavior of these compounds represents an extreme case in which the tilt angle of the constituent tetrahedra increases in a spectacular way at high pressure resulting in a major change in ...
Haines, J. +6 more
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Collapse Pressure of Oval Coiled Tubing
Proceedings of European Petroleum Conference, 1992Abstract Coiled Tubing (CT) is sometimes used in applications where the pressure outside the CT may be higher than the pressure inside the CT. These applications include operations in high pressure wells1 and reverse circulation operations where a fluid is pumped down the annulus and returns are taken up through the CT. If the difference
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The collapse of cylinder/sphere intersecting pressure vessels
Nuclear Structural Engineering, 1965Abstract A general method is presented for finding lower and upper bounds on the collapse pressure for a plastic-rigid vessel composed of intersecting cylindrical and spherical shells obeying Tresca's yield condition and associated flow rule. Depending upon the ratio ( t d )/( T D ) different types of solutions are generated.
F ELLYIN, A SHERBOURNE
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Pressure/flow behaviour in collapsible tube subjected to forced downstream pressure fluctuations
Medical & Biological Engineering & Computing, 1995An experimental investigation has been made into the pressure/flow behaviour of a collapsible tube subjected to downstream pressure fluctuations. These downstream pressure waves are observed to be transmitted upstream beyond the point of collapse. The mean flow rate is not significantly affected by the amplitude or frequency of pressure fluctuations ...
Low, T.H. +3 more
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The Collapse or Ballooning Pressure of Thick-Walled Pressure Vessels
MRS Proceedings, 1983ABSTRACTDiscussion of the proposed extension of the ASME pressure vessel code to cover operating pressures up to 1.4 GPa (200000 lbf/in2 ) has generated the proposal that two criteria should be used, of which one would be the collapse or ballooning pressure not the bursting pressure.
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Skewed norms under peer pressure: Formation and collapse [PDF]
, 2014 This paper shows that peer pressure may lead to dynamic convergence to a norm that is skewed with respect to preferences in society, yet is endogenously upheld by the population. Moreover, a skewed norm will often be more sustainable than a representative norm. This may explain the skewness of various social and religious norms.
Michaeli, Moti, Spiro, Daniel
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Collapse Tests on Externally Pressurized Toroids
Journal of Pressure Vessel Technology, 2002The paper discusses the load-carrying capacity of toroidal shells with closed circular cross section and loaded by static external pressure. Details about the manufacturing, pre-experiment measurements and testing of three, nominally different, steel toroids are provided.
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