Multi-scale failure of heterogeneous materials: A double kinematics enhancement for Embedded Finite Element Method. (1st January 2015)

• Record Type: Journal Article
• Authors: Roubin, Emmanuel; Vallade, Alexis; Benkemoun, Nathan; Colliat, Jean-Baptiste
• Is Part Of: International journal of solids and structures. Volume 52(2015)
• Page Start: 180
• Page End: 196
• Publication Date: 2015-01-01
• Subjects: Heterogeneous quasi-brittle material -- Strong discontinuity approach -- E-FEM method -- EAS method; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2014.10.001
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: This paper presents a Finite Element model for the modeling of the failure of heterogeneous material at the meso-scale. This model is cast into the framework of the Enhanced Finite Element Method (E-FEM). Two kinds of enhancement are performed: (1) in the displacement field (strong discontinuity approach) in order to take into account micro-cracks, (2) in the strain field (weak discontinuity) in order to take into account heterogeneities without any mesh adaptation. Mechanical applications (uniaxial tension and compression loading, non-proportional loading) are performed in the context of cementitious materials such as concrete. We show the capability of the model to represent some of the main features of such materials observed at macro-scale.