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Titolo:
Hardening models and their predictions of material response
Autore:
Jiang, W;
Indirizzi:
Florida Int Univ, Dept Mech Engn, Miami, FL 33199 USA Florida Int Univ Miami FL USA 33199 , Dept Mech Engn, Miami, FL 33199 USA
Titolo Testata:
JOURNAL OF ENGINEERING MECHANICS-ASCE
fascicolo: 4, volume: 125, anno: 1999,
pagine: 382 - 391
SICI:
0733-9399(199904)125:4<382:HMATPO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELASTIC-PLASTIC RESPONSE; THIN-WALLED TUBES; CYCLIC PLASTICITY; TORSIONAL LOADS; YIELD SURFACES; STEEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Jiang, W Florida Int Univ, Dept Mech Engn, Miami, FL 33199 USA Florida IntUniv Miami FL USA 33199 ch Engn, Miami, FL 33199 USA
Citazione:
W. Jiang, "Hardening models and their predictions of material response", J ENG MEC, 125(4), 1999, pp. 382-391

Abstract

Several hardening models are investigated in this paper to examine how they predict material behavior under closed-loop loading paths. The linear Prager's kinematic hardening rule and a new kinematic hardening model proposedin a previous paper are first used to solve a thin-walled tube problem subjected to combined internal pressure and axial loads. Closed-form transientand steady-state solutions are achieved for closed-loop loading paths, andthe corresponding yield center loci and plastic strain trajectories are illustrated. This paper then shows that Phillips's kinematic hardening rule and the two-surface plasticity theory all predict an unreasonable material response. A conclusion is finally reached that the newly proposed kinematic hardening model has more potential than the other models, and further theoretical and experimental investigations are suggested to probe the optimum form of the plastic modulus to make this new model qualitatively, and also quantitatively, describe well material behavior.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/20 alle ore 07:32:12