Modelling crack propagation in concrete structures with a two scale approach

A simplified computational technique based on a refined global–local method is applied to the failure analysis of concrete structures. The technique distinguishes the scale of the structure, modelled with large size finite elements, from the scale at which material non‐linearity occurs due to progre...

Full description

Saved in:
Bibliographic Details
Published in:International journal for numerical and analytical methods in geomechanics 2003-11, Vol.27 (13), p.1187-1205
Main Authors: Haidar, Khalil, Dubé, Jean François, Pijaudier-Cabot, Gilles
Format: Article
Language:English
Subjects:
Applied sciences
Building structure
Buildings. Public works
Computation methods. Tables. Charts
concrete
Concrete structure
Construction (buildings and works)
damage
Engineering Sciences
Exact sciences and technology
Mechanics
Mechanics of materials
multiscale approaches
Structural analysis. Stresses
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A simplified computational technique based on a refined global–local method is applied to the failure analysis of concrete structures. The technique distinguishes the scale of the structure, modelled with large size finite elements, from the scale at which material non‐linearity occurs due to progressive cracking and macro‐crack propagation. The finite element solution is split into two parts: a linear elastic analysis on a coarse mesh over the entire structure and a non‐linear analysis over a small part of the structure where a dense finite element grid is employed. In the non‐linear calculation, a non‐local damage model is implemented. These two computations are coupled with the help of an iterative scheme. The size and location of the region where a non‐linear analysis is performed, is adapted to follow the development of the damage zone. Numerical examples of mode I fracture of concrete specimens with straight and curved cracks are presented. Copyright © 2003 John Wiley & Sons, Ltd.
ISSN:0363-9061
1096-9853
DOI:10.1002/nag.318