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, GIUSEPPE;MAIER, GIULIO
2000-01-01

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.
Inelastic Analysis of Structures Under Variable Loads: Theory and Engineering Applications
direct methods; bounds on post-shakedown quantities; poroplasticity
File in questo prodotto:
File Dimensione Formato  
Cocchetti-Maier-CISM-2000-LQ.pdf

Accesso riservato

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 2.46 MB
Formato Adobe PDF
2.46 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/558600
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact