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principle of virtual work

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principle of virtual work

[′prin·sə·pəl əv ′vər·chə·wəl ‚wərk]
(mechanics)
The principle that the total work done by all forces acting on a system in static equilibrium is zero for any infinitesimal displacement from equilibrium which is consistent with the constraints of the system. Also known as virtual work principle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
To extend the principle of virtual work for dynamic systems, mass accelerations are introduced.
Investigation of pencil-lead breaks as acoustic emission sources
Then the principle of virtual work is written on each of these elements with a local finite element approximation and evaluated to yield element discrete equations which are then assembled so as to form an approximate membrane representation [11].
A new hybrid approach using the explicit dynamic finite element method and thermodynamic law for the analysis of the thermoforming and blow molding processes for polymer materials
The elastic solid approach employs either continuum mechanics (5, 6) or the principle of virtual work (7-12) in the formulation.
The present finite element formulation (11, 15) is based on the principle of virtual work. The thin shell approximation, which neglects any bending, twisting, and transverse resistance in the thickness direction, is used.
Experimental and theoretical investigation of the inflation of variable thickness parisons
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