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Upper Bounds on Post-Shakedown Quantities in Poroplasticity
Abstract In this paper various inequalities are established in coupled poroplasticity. These provide upper bounds that can be computed directly for various history-dependent post-shakedown quantities. The main features of the constitutive and computational models considered are as follows: two-phase material; full saturation; piecewise linearization of yield surfaces and hardening; associativity; linear Darcy law; finite element space-discretization in Prager’s generalized variables. The results achieved are illustrated by comparative numerical tests.
Upper Bounds on Post-Shakedown Quantities in Poroplasticity
Abstract In this paper various inequalities are established in coupled poroplasticity. These provide upper bounds that can be computed directly for various history-dependent post-shakedown quantities. The main features of the constitutive and computational models considered are as follows: two-phase material; full saturation; piecewise linearization of yield surfaces and hardening; associativity; linear Darcy law; finite element space-discretization in Prager’s generalized variables. The results achieved are illustrated by comparative numerical tests.
Upper Bounds on Post-Shakedown Quantities in Poroplasticity
Cocchetti, G. (author) / Maier, G. (author)
2000-01-01
26 pages
Article/Chapter (Book)
Electronic Resource
English
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