A unilateral nonlocal tensile damage model for masonry structures

Tesei, Claudia; Ventura, Giulio

doi:10.1016/j.prostr.2016.06.336

Cited by 5 publications

(5 citation statements)

References 15 publications

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“…Masonry is one of the most commonly used construction techniques in historic buildings of many countries around the world [3]. Among all the historic buildings that characterize the world's architectural heritage, ancient masonry towers are widespread throughout Europe and represent one of the most important elements of local cultural heritage [4,5].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Load Capacity of a Slender Masonry Clock Tower

Sözen

2022

Period. Polytech. Civil Eng.

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The paper presents the seismic vulnerability assessment of a historical masonry clock tower by means of the finite element method. The mechanical behavior and failure mechanism of these structures must be well understood in order to evaluate their performance and select an appropriate retrofit approach when needed. Stone towers, which sometimes have complex geometries and irregularities and are often designed for vertical loads, are vulnerable to lateral loads, especially earthquake loads, due to the slenderness of the tower and the limited ductility of the stone. This study aims to determine the horizontal load capacity of a magnificent clock tower by investigating its structural behavior using the finite element method. The analyzes carried out considering the seismicity of the region showed that the clock tower would be severely damaged or completely collapsed in case of an earthquake with an exceedance probability of 10% in 50 years. In non-linear time history analyses, the maximum base shear force to weight ratio was calculated as 0.27. The maximum drift ratio at the top of the clock tower reveals that the tower exceeds the collapse prevention performance level. The residual displacements obtained from non-linear time history analysis prove that plastic deformations occur on the tower body. In the light of this data, it is considered that the clock tower needs to be retrofitted with acceptable restoration procedures against possible earthquakes in the region.

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Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Load Capacity of a Slender Masonry Clock Tower

Sözen

2022

Period. Polytech. Civil Eng.

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“…Damage models have been used by several authors to study masonry structures under various loading conditions: walls under seismic loads (Callerio & Papa, 1998), (Maier, Papa, & Nappi, 1991), (Papa, 1995), (Toti, Gattulli, & Sacco, 2015), (Wawrzynek & Cincio, 2005) ; walls under a point shear load (Addessi, Marfia, & Sacco, A plastic nonlocal damage model, 2002), (Addessi & Sacco, A multi-scale enriched model for the analysis of masonry panels, 2012), (Berto, Saetta, Scotta, & Vitaliani, 2004), (Uva & Salerno, 2006), (Zucchini & Lourenço, A micro-mechanical homogenisation model for masonry: Application to shear walls, 2009); walls under in-plane vertical or horizontal loads (Greco, Leonett, Luciano, & Nevone Blasi, 2016), (Luciano & Sacco, 1997), (Massart, Peerlings, & Geers, 2004), (Quinteros, Oller, & Nallim, 2012), (Tesei & Ventura, 2016), (Zahra & Dhanasekar, 2016), (Zucchini & Lourenço, A coupled homogenisation-damage model for masonry cracking, 2004), (Zucchini & Lourenço, Mechanics of masonry in compression: Results from a homogenisation approach, 2007); vaults under different loads (Creazza, Matteazzi, Saetta, & Vitaliani, 2002), (Pelà , Cervera, & Roca, 2011), (Stablon, Sellier, Domede, Plu, & Dieleman, 2012); and bridges (Domède, 2006), (Domede, Sellier, & Stablon, 2013) ; among others. Most of the studies on masonry using damage models consider a wall subjected to in-plane loads or earthquake motions; the case of vaults (bridge or buried arches) is not commonly discussed.…”

Section: Introductionmentioning

confidence: 99%

Application of a coupled homogenization-damage model to masonry tunnel vaults

Regan¹,

Bourgeois²,

Colas³

et al. 2017

Computers and Geotechnics

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This paper presents an approach developed to study the behavior of the masonry vaulted tunnels in order to evaluate the serviceability state and failure load. An appropriate homogenization technique is used to simulate the global anisotropic behavior across the vault. The model takes into account isotropic damage in each component of the masonry and the variations of the directions of anisotropy in case of a vault. A set of comparisons with experimental tests allowed the validation of the proposed approach. Failure loads and deformation states are correctly assessed. The present model was programmed in the finite element code CESAR-LCPC.

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“…Nosúltimos anos, com o crescimento da aplicação de simulação computacional para prever o comportamento de estruturas, diversos modelos numéricos têm sido propostos para representar o comportamento de estruturas de alvenaria submetidasà diversos tipos de carregamentos [Manos et al, 2012, Vandoren et al, 2013, Salát, 2015, Drougkas et al, 2015, Toti et al, 2015, Tesei and Ventura, 2016, Smoljanović et al, 2015, Greco et al, 2016, Milani et al, 2014, Addessi et al, 2014, Macorini and Izzuddin, 2013, Facconi et al, 2013, Addessi and Sacco, 2016, Saloustros et al, 2015a, Bolhassani et al, 2015. Nestes modelos, a principal dificuldade encontrada, tem sido representar o comportamento não linear das juntas de argamassa.…”

Section: Aspectos Gerais E Motivaçãounclassified

“…Nosúltimos anos diversos modelos numéricos têm sido desenvolvidos para modelagem computacional de estruturas de alvenaria [Manos et al, 2012, Vandoren et al, 2013, Salát, 2015, Drougkas et al, 2015, Toti et al, 2015, Tesei and Ventura, 2016, Smoljanović et al, 2015, Greco et al, 2016, Milani et al, 2014, Addessi et al, 2014, Macorini and Izzuddin, 2013, Facconi et al, 2013. O desenvolvimento destes modelos tem sido um desafio, principalmente, por se tratar de uma estrutura complexa, composta por um conjunto de blocos sobrepostos que têm suas interfaces preenchidas por argamassa.…”

Section: Modelagem Numérica De Estruturas De Alvenariaunclassified

“…AFigura 2.7 ilustra um modelo em macroescala desenvolvido por [Facconi et al, 2013] com modelo de fissuras distribuídas. Por fim, estes modelos são de fácil im-plementação computacional, podendo ser formulados a partir de qualquer teoria baseada na mecânica do contínuo, como teoria da elastoplasticidade e mecânica do dano (Tesei and Ventura [2016], ), etc., e seus parâmetros podem ser obtidosà partir de ensaios simples de laboratório.…”

Section: Macroescalaunclassified

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Modelagem numérica de juntas de argamassa em estruturas de alvenaria utilizando elementos finitos com alta razão de aspecto.

Tayer¹

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This work presents a novel numerical model to simulate the failure process in masonry structures subjected to static loads via finite element method. Brick and mortar joints are modeled separately with their own constitutive equations. Interface finite element with high aspect ratio are used to simulate the mortar interface and inserted by the mesh fragmentation technique. The main advantage of this strategy is supported by the fact that, as the aspect ratio of a standard low-order solid finite element increases, the element strains also increase, approaching the same kinematics as the Continuum Strong Discontinuity Approach. A constitutive model was developed, based on the continuum damage mechanics, in order to represent the behavior of the interface finite elements. This model is able to simulate the creation and propagation of cracks, as well as, the frictional effects in dependence on stress confinement on the interfaces. Furthermore, as the objective of this work aims to simulate the failure in the mortar joints, the brick elements are assumed as linear elastic material. Three node standard triangular finite element are used to represent the bricks. Several numerical models are carried out. Initially, basics tests are show in order to demonstrate the main characteristics of the proposed model subjected to tensile, compression and shear loads. Subsequently, masonry structures are subjected to static loads are analyzed and the results compared with the experimental responses in order to validate the proposed model. This technique proved to be very promising for the simulation of failure onset and propagation in mortar joints of masonry structures.

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A unilateral nonlocal tensile damage model for masonry structures

Cited by 5 publications

References 15 publications

Assessment of Seismic Load Capacity of a Slender Masonry Clock Tower

Assessment of Seismic Load Capacity of a Slender Masonry Clock Tower

Application of a coupled homogenization-damage model to masonry tunnel vaults

Modelagem numérica de juntas de argamassa em estruturas de alvenaria utilizando elementos finitos com alta razão de aspecto.

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