Intrinsic dissipation of a modular anisotropic damage model : application to concrete under impactReportar como inadecuado




Intrinsic dissipation of a modular anisotropic damage model : application to concrete under impact - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 LMT - Laboratoire de Mécanique et Technologie 2 Laboratoire d-études dynamiques 3 LMT - Laboratoire de Mécanique et Technologie

Abstract : Based on the mathematical proof of the positivity of the dissipation due to anisotropic damage, different numerical scheme to compute such a dissipation in concrete structures are proposed. The positivity of intrinsic dissipation for the considered modular anisotropic damage model is first checked in the case of Willam non-proportional loading test, then checked for different impact tests on concrete structures. Both the consequences of the modeling of the strain rate effect in tension from visco-damage and of the damage deactivation micro-cracks closure for alternated loadings are studied.

Keywords : Anisotropic damage delay-effect concrete intrinsic dissipation impact





Autor: Marion Chambart - Rodrigue Desmorat - Fabrice Gatuingt -

Fuente: https://hal.archives-ouvertes.fr/



DESCARGAR PDF




Documentos relacionados