Concrete damage analysis based on higher-order beam theories using fracture energy regularization

This paper presents the numerical damage analysis of concrete structures using higher-order beam theories based on Carrera Unified Formulation (CUF). The constitutive relation is modeled continuum mechanics a modified Mazars model, in which both tensile and compressive softening behaviors are regularized with classical fracture energy methodology. An expression proposed to estimate characteristic length theories, prevent mesh dependency. Both laws calculations obtained according Model Code 2010. To assess efficiency three benchmark quasi-static experiments taken for validation. From comparison between experimental results, CUF model can present 3D accuracy low computational costs reduce