A fully saturated two-phase solid or structure subjected to variable, in particular cyclic, external actions is described as a nonhardening poroelastoplastic material with piecewise linearized yield loci. With reference to a multifield finite element model, sufficient and necessary conditions for shakedown are established by the static Melan's approach. Shakedown analysis by linear programming is briefly discussed.

Static shakedown theorems in piecewise linearized poroplasticity

COCCHETTI, GIUSEPPE;MAIER, GIULIO
1998

Abstract

A fully saturated two-phase solid or structure subjected to variable, in particular cyclic, external actions is described as a nonhardening poroelastoplastic material with piecewise linearized yield loci. With reference to a multifield finite element model, sufficient and necessary conditions for shakedown are established by the static Melan's approach. Shakedown analysis by linear programming is briefly discussed.
poroplasticity; shakedown; limit analysis; lower bound
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/559394
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