Article (Scientific journals)
Multi-scale detection of failure in planar masonry thin shells using computational homogenisation
Mercatoris, Benoît; Bouillard, Ph; Massart, T. J.
2009In Engineering Fracture Mechanics, 76 (4), p. 479-499
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Keywords :
Computational homogenisation; Failure; Masonry planar shells; Multi-scale detection; Shells (structures); Anisotropy properties; Computational schemes; Damage; Localisation; Masonry walls; Mesoscopic scale; Out-of-plane behaviour; Shell kinematics; Thin shells; Masonry materials
Abstract :
[en] This paper presents a computational homogenisation-based technique for localisation detection in planar masonry shells. A computational homogenisation procedure is used for the in-plane and the out-of-plane behaviour of masonry walls taking the periodicity of the material into account. The quasi-brittle nature of the masonry constituents results in initial and damage-induced (evolving) anisotropy properties with localisation of damage at both the structural and fine scales. Using a closed-form damage model at the mesoscopic scale, it is shown that a structural scale localisation criterion based on the acoustic tensor adapted to shell kinematics allows to detect the structural scale localisation. This detection identifies average preferential cracking orientations consistent with the stacking mode of masonry for both in-plane and out-of-plane failure. This approach is illustrated by examples of bed joint and stair-case failure, and its subsequent integration in multi-scale nested computational schemes is discussed. © 2008 Elsevier Ltd. All rights reserved.
Disciplines :
Materials science & engineering
Mechanical engineering
Author, co-author :
Mercatoris, Benoît  ;  Université Libre de Bruxelles - ULB > Building, Architecture and Town Planning Dept.
Bouillard, Ph;  Building, Architecture and Town Planing Department, Université Libre de Bruxelles (ULB), Av. F.-D. Roosevelt 50, 1050 Brussels, Belgium
Massart, T. J.;  Building, Architecture and Town Planing Department, Université Libre de Bruxelles (ULB), Av. F.-D. Roosevelt 50, 1050 Brussels, Belgium
Language :
English
Title :
Multi-scale detection of failure in planar masonry thin shells using computational homogenisation
Publication date :
2009
Journal title :
Engineering Fracture Mechanics
ISSN :
0013-7944
eISSN :
1873-7315
Publisher :
Pergamon Press - An Imprint of Elsevier Science
Volume :
76
Issue :
4
Pages :
479-499
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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