On a continuum theory of brittle materials with microstructure



Título del documento: On a continuum theory of brittle materials with microstructure
Revista: Computational & applied mathematics
Base de datos: PERIÓDICA
Número de sistema: 000272541
ISSN: 1807-0302
Autores: 1
2
Instituciones: 1Universidade Federal do Rio de Janeiro, Programa de Engenharia Mecanica, Rio de Janeiro. Brasil
2Universidade Federal Fluminense, Laboratorio de Mecanica Teorica e Aplicada, Niteroi, Rio de Janeiro. Brasil
Año:
Volumen: 23
Número: 2-3
Paginación: 327-343
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado, descriptivo
Resumen en inglés This paper deals with a finite strain continuum theory of elastic-brittle solids with microstructure. A single scalar microstructural field is introduced, meant to represent - even if in a summary way - the concentration of microdefects within the material. A system of microforces, dual to the microstructural field, is axiomatically introduced. The corresponding balance, augmented with suitable constitutive information, yields, inter alia, a kinetic equation for the microstructural field, criteria for damage nucleation, growth and healing as well as a failure criterion based on attainment of a critical value of the microstructural field. The theory is applied for the description of the Mullins effect
Disciplinas: Física y astronomía,
Matemáticas,
Ingeniería
Palabras clave: Mecánica, elasticidad y reología,
Matemáticas aplicadas,
Ingeniería de materiales,
Materiales frágiles,
Microestructuras,
Efecto de Mullins
Keyword: Physics and astronomy,
Mathematics,
Engineering,
Mechanics, elasticity and rheology,
Applied mathematics,
Materials engineering,
Microstructures,
Mullins effect,
Brittle materials
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