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Titolo:
A FINITE-ELEMENT APPROACH TO ANISOTROPIC DAMAGE OF DUCTILE MATERIALS IN LARGE DEFORMATIONS .1. AN ANISOTROPIC DUCTILE ELASTIC-PLASTIC-DAMAGE MODEL
Autore:
SHIN JG; NHO IS; YIM SJ;
Indirizzi:
SEOUL NATL UNIV,DEPT NAVAL ARCHITECTURE & OCEAN ENGN SEOUL 151742 SOUTH KOREA CHUNGNAM NATL UNIV,DEPT NAVAL ARCHITECTURE & OCEAN ENGN TAEJON 305764SOUTH KOREA
Titolo Testata:
International journal of fracture
fascicolo: 3, volume: 84, anno: 1997,
pagine: 261 - 277
SICI:
0376-9429(1997)84:3<261:AFATAD>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONTINUUM DAMAGE; MECHANICS MODEL; FRACTURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
J.G. Shin et al., "A FINITE-ELEMENT APPROACH TO ANISOTROPIC DAMAGE OF DUCTILE MATERIALS IN LARGE DEFORMATIONS .1. AN ANISOTROPIC DUCTILE ELASTIC-PLASTIC-DAMAGE MODEL", International journal of fracture, 84(3), 1997, pp. 261-277

Abstract

During past decades, many material models using the continuum damage mechanics (CDM) approach have been proposed successfully in the small deformation regime to describe inelastic behaviors and fracturing phenomena of a material. For ductile materials, large deformation takes place at the level of damage appearance. Damage is anisotropic in nature. In this paper, the ductile damage at finite deformations is modeled as an anisotropic tensor quantity. Then, a fourth-order symmetric stress correction tensor is proposed for computationally efficient and easy implementation in the finite element formulations. Consequently, an explicit form of the fourth-order constitutive equations of the proposed elastic-plastic-damage model is derived. Both isotropic and kinematic hardening effects are included in the formulation. The new constitutive model can predict not only the elastic-plastic behaviors, but also the sequential stiffness variations of ductile materials. An evaluation of the constitutive and damage evolution equations is presented.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 17/01/20 alle ore 20:10:14