Finite/discrete element modelling of reversed cyclic tests on unreinforced masonry structures

Miglietta, Paola Costanza; Bentz, Evan C.; Grasselli, Giovanni

doi:10.1016/j.engstruct.2017.02.019

Cited by 28 publications

(10 citation statements)

References 16 publications

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“…With regards to modelling cyclic in-plane loading of masonry, a study conducted by Oliveira and Lourenço [13], proposed a 2D model to simulate the behaviour of masonry under cyclic loadings using interface elements between masonry units. In a more recent study conducted by Miglietta et al [14], finite/discrete element modelling (DEM) is implemented to simulate the behaviour of masonry under reversed cyclic in-plane loadings. The implemented 2D model depended on stress-displacement relationships between the adjacent masonry elements to simulate the opening and sliding behaviour of masonry joint elements.…”

Section: Introductionmentioning

confidence: 99%

Simulating masonry wall behaviour using a simplified micro-model approach

Abdulla

Cunningham

Gillie

2017

Engineering Structures

204

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Keywords:Modelling masonry Surface-based cohesive behaviour XFEM Crack propagation In-plane load Out of plane load Cyclic in-plane load a b s t r a c tIn this paper, a simplified micro-model approach utilising a combination of plasticity-based constitutive models and the extended finite element method (XFEM) is proposed. The approach is shown to be an efficient means of simulating the three-dimensional non-linear behaviour of masonry under monotonic in-plane, out of plane and cyclic loads. The constitutive models include surface-based cohesive behaviour to capture the elastic and plastic behaviour of masonry joints and a Drucker Prager (DP) plasticity model to simulate crushing of masonry under compression. The novel use of XFEM in simulating crack propagation within masonry units without initial definition of crack location is detailed. Analysis is conducted using standard finite element software (Abaqus 6.13) following a Newton Raphson algorithm solution without employing user-defined subroutines. The capability of the model in terms of capturing nonlinear behaviour and failure modes of masonry under vertical and horizontal loads is demonstrated via comparison with a number of published experimental studies.

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Section: Introductionmentioning

confidence: 99%

Simulating masonry wall behaviour using a simplified micro-model approach

Abdulla

Cunningham

Gillie

2017

Engineering Structures

204

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“…Specifically, there are observable concentrations around the right window in the second floor, a fact that reflects a load‐path change with compressive strain releases in the left side of the facade. The rapid crack closure after the removal of the lateral loads may be mitigated by more involved modeling approaches, including detailed hysteretic laws for shear permanent sliding and crack closure (see, eg, the study of Miglietta). Nonetheless, the brittle response given by the considered smeared crack approach is assumed accurate enough for the purpose of these analyses.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Earthquake‐induced damage detection and localization in masonry structures using smart bricks and Kriging strain reconstruction: A numerical study

García‐Macías

Ubertini

2018

Earthq Engng Struct Dyn

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Summary The intrinsic vulnerability of masonry structures to seismic events makes structural health monitoring of the utmost importance for the conservation of the built heritage. The development of piezoresistive bricks, also termed smart bricks, is an innovative technology recently proposed by the authors for the monitoring of such structures. Smart bricks exhibit measurable variations in their electrical properties when subjected to external loads or, alternatively, strain self‐sensing capabilities. Therefore, the deployment of a network of smart bricks into a masonry structure confers self‐diagnostic properties to the host structure. In this light, this paper presents a theoretical investigation on the application of smart bricks to full‐scale masonry structures for seismic assessment. This includes the study of the convenience of providing electrical isolation conditions to the sensors, as well as the effectiveness of smart bricks when installed into either new constructions or in pre‐existing structures. Secondly, numerical results are presented on the seismic analysis of a three‐dimensional masonry building equipped with a network of smart bricks. Finally, in order to map the strain field throughout the structure exploiting the outputs of a limited number of sensors, an interpolation‐based strain reconstruction approach is proposed.

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“…In the normal direction, body impenetrability is enforced using a penalty method (Munjiza and Andrews, 2000), while in the tangential direction, discontinuity frictional behavior is simulated by a Coulomb-type friction law (Mahabadi et al, 2012). The FEM/DEM approach here adopted was originally introduced in soil mechanics problems (Munjiza et al, 1995); however, it has been successfully extended to the field of masonry structures by some of the authors (Baraldi et al, 2013(Baraldi et al, , 2015b(Baraldi et al, , 2018bReccia et al, 2012Reccia et al, , 2016 and by other research groups (Miglietta et al, 2016(Miglietta et al, , 2017Smoljanović et al, 2013Smoljanović et al, , 2015Smoljanović et al, , 2017.…”

Section: A Combined Finite/discrete Element Model (Fem/dem) (A)mentioning

confidence: 99%

A Multiscale/Multidomain Model for the Failure Analysis of Masonry Walls: A Validation With a Combined Fem/Dem Approach

Reccia

Leonetti

Trovalusci

et al. 2018

Int J Mult Comp Eng

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Finite/discrete element modelling of reversed cyclic tests on unreinforced masonry structures

Cited by 28 publications

References 16 publications

Simulating masonry wall behaviour using a simplified micro-model approach

Simulating masonry wall behaviour using a simplified micro-model approach

Earthquake‐induced damage detection and localization in masonry structures using smart bricks and Kriging strain reconstruction: A numerical study

A Multiscale/Multidomain Model for the Failure Analysis of Masonry Walls: A Validation With a Combined Fem/Dem Approach

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