CIMEC   24726
CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Multi-scale (FE2) analysis of material failure in cement/ aggregate-type composite structures
Autor/es:
J. OLIVER,; M. CAICEDO; E. ROUBIN; J. HERNANDEZ; A. E. HUESPE
Lugar:
St. Anton am Arlberg; Austria; 24 March 2014 through 27 March 2014
Reunión:
Congreso; EURO-C 2014 Conference;; 2014
Resumen:
The work proposes a FE2multiscale approach to computational modeling of material failure in concrete-like structures, made of cement/aggregate-type composite materials. Keeping the approach in a classical homogenization setting, a multiscale model is proposed, which naturally provides a microscopic lengthscale to be exported to the macrostructure. There, this length scale is used as regularization parameter in the context of the Continuum Strong Discontinuity Approach to material failure, and finiteelements with embedded strong discontinuities (E-FEM). The resulting technique allows robust modeling of crack propagation at the structural scale, accounting for the mesostructure morphology, supplies proper energy dissipation and solutions independent of the finite element and RVE sizes. Application to a number of examples, in the range from light-aggregate concrete to regular concrete, shows the potentiality of the method.