S24  Mecânica dos Sólidos    Titulo: A THEORETICAL-NUMERICAL STUDY IN SINGLE CRYSTALS LARGE DEFORMATION PLASTICITY   Resumo : ABSTRACT: THE PRESENT WORK ADDRESSES THEORETICAL AND NUMERICAL ASPECTS OF SINGLE CRYSTAL ELASTOVISCOPLASTICITY. A RATE FORMULATION OF THE CONSTITUTIVE EQUATIONS IS CONSIDERED, WHERE TWO TYPES OF SELF-HARDENING RULES ARE STUDIED. CUBIC CRYSTALS UNDER PLANE STRESS WITH TWO SLIP PLANES ARE CONSIDERED IN THE PRESENT STUDY. NUMERICAL PROCEDURES RELATED TO THE INTEGRATION OF THE RESULTING CONSTITUTIVE RELATION IS DESCRIBED IN DETAIL. SOME QUASI-STATIC EVOLUTION PROBLEMS ARE SOLVED USING THE FINITE ELEMENT METHOD. KEYWORDS: SINGLE CRYSTALS, VISCOPLASTICITY, LARGE DEFORMATION, NUMERICAL METHODS     Autores : ALGARTE, ROBERTO DIAS MAMIYA, EDGAR NOBUO     Trabalho Completo :   COBEM99 | Comissão  Organizadora | Palestras | Sessões Técnicas | Autor | Simpósios e Sessões Especiais | Revisores |  Título  dos  Trabalhos | Local