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virtual displacement

   Also found in: Wikipedia 0.01 sec.
virtual displacement [′vər·chə·wəl di′splās·mənt]
(mechanics)
Any change in the positions of the particles forming a mechanical system.
An infinitesimal change in the positions of the particles forming a mechanical system, which is consistent with the geometrical constraints on the system.
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[bar]] is the external surface force due to pressure, and [delta]u is a virtual displacement vector compatible with the displacement boundary conditions.
Nonisothermal finite-element analysis of thermoforming of ... by Erchiqui, F.; Souli, M.; Yedder, R. Ben / Polymer Engineering and Science
In viewing the televised commentators these last several days, I have noticed that the demagogues, of two or three decades ago, have re-emerged from their political grottoes to advocate, among other things, the virtual displacement of our civil liberties, the resumption of the assassination of heads of state and the granting of unfettered power or authority to certain governmental agencies, all in the name of ``protecting our way of life.
PUBLIC FORUM NOT IN THE RUBBLE by Daily News (Los Angeles, CA)
0] and [GAMMA] stand respectively for the volume of the undeformed membrane and the surface of the deformed membrane, t is the external surface force due to pressure and [delta]u is a virtual displacement vector compatible with displacement boundary conditions.
A new hybrid approach using the explicit dynamic finite element ... by Erchiqui, Fouad / Polymer Engineering and Science
 
 
 
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