ELASTIC-PERFECTLY PLASTIC SOLID STRUCTURES are considered subjected to combined loads, superposition of permanent (mechanical) loads and cyclically variable loads, the latter being specified to within a scalar multiplier. The classical maximum dissipation theorem is used to derive known results of the shakedown theory, as well as a few apparently novel concepts: the shakedown limit load associated with a given (noninstantaneous) collapse mode, the mixed upper bound to the shakedown safety factor, and the mixed static-kinematic formulation of the shakedown safety factor problem. The shakedown load boundary surface is also investigated and a number of its notable features are pointed out. A simple illustrative example is presented.

Polizzotto C., Borino G., Fuschi P. (2000). An approach to elastic shakedown based on the maximum plastic dissipation theorem. ARCHIVES OF MECHANICS, 52(4-5), 713-735.

An approach to elastic shakedown based on the maximum plastic dissipation theorem

Polizzotto C.
;
Borino G.;
2000-01-01

Abstract

ELASTIC-PERFECTLY PLASTIC SOLID STRUCTURES are considered subjected to combined loads, superposition of permanent (mechanical) loads and cyclically variable loads, the latter being specified to within a scalar multiplier. The classical maximum dissipation theorem is used to derive known results of the shakedown theory, as well as a few apparently novel concepts: the shakedown limit load associated with a given (noninstantaneous) collapse mode, the mixed upper bound to the shakedown safety factor, and the mixed static-kinematic formulation of the shakedown safety factor problem. The shakedown load boundary surface is also investigated and a number of its notable features are pointed out. A simple illustrative example is presented.
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Polizzotto C., Borino G., Fuschi P. (2000). An approach to elastic shakedown based on the maximum plastic dissipation theorem. ARCHIVES OF MECHANICS, 52(4-5), 713-735.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/511970
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