Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 195, Issue 52, Pages 7182-7195Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2005.05.052
Keywords
meso-mechanics; meso-structural analysis; mesh generation; Voronoi-Delaunay; zero-thickness interfaces; fracture; damage; cracking; fracture energy; fictitious crack model; mixed-mode fracture; uniaxial tension test
Ask authors/readers for more resources
This paper describes an approach for the 3D meso-structural analysis of concrete specimens, which extends the previous work developed in 2D within the same research group. Concrete is represented as a particle array (larger aggregates only), embedded in a matrix (mortar plus smaller aggregates), everything discretized using finite elements. Zero-thickness interface elements are inserted along all particle-matrix and selected matrix-matrix element boundaries, to represent the main potential crack planes. Continuum elements are assumed elastic, while the interfaces are equipped with a fracture-based constitutive law to represent cracks. For the 3D calculations, major efforts have been devoted to mesh generation, code efficiency and post-processing. As application examples, uniaxial tension specimens of 14 and 64 aggregates with the same volume fracture are presented. The results obtained reproduce the main features known of concrete behavior, both at the meso- and overall stress-strain levels. (c) 2005 Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available