title: Simplified strategies based on damage mechanics for concrete under dynamic loading.
abstract: Based on previous work, the µ damage model has been designed to figure out the various damage effects in concrete correlated with monotonic and cyclic loading, including unilateral effects. Assumptions are formulated to simplify constitutive relationships while still allowing for a correct description of the main nonlinear effects. In this context, the paper presents an enhanced simplified finite-element description including a damage description, based on the use of multifibre beam elements and including strain rate effects. Applications show that such a strategy leads to an efficient tool to simulate dynamic loading at low, medium and high velocities.This article is part of the themed issue 'Experimental testing and modelling of brittle materials at high strain rates'.
authors.affiliation: 3SR Laboratory, Grenoble Institute of Technology, BP53-38000 Grenoble, France jacky.mazars@3sr-grenoble.fr.|3SR Laboratory, CNRS, BP53-38041 Grenoble cedex 9, France.
authors.forename: Jacky
authors.identifier: http://orcid.org/0000-0003-2376-0902
authors.initials: J
authors.lastname: Mazars
authors.affiliation: 3SR Laboratory, University Grenoble Alpes, BP53-38000 Grenoble, France.|3SR Laboratory, CNRS, BP53-38041 Grenoble cedex 9, France.
authors.forename: Stéphane
authors.initials: S
authors.lastname: Grange
keywords: concrete; damage models; dynamic loading; reinforced concrete; simplified modelling