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Simple Homogenisation Model for the Non-Linear Analyses of 3D Masonry Structures

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Simple Homogenisation Model for the Non-Linear Analyses of 3D Masonry Structures

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dc.contributor.author Bertolesi, Elisa es_ES
dc.contributor.author Milani, Gabriele es_ES
dc.date.accessioned 2018-07-16T06:57:53Z
dc.date.available 2018-07-16T06:57:53Z
dc.date.issued 2017 es_ES
dc.identifier.uri http://hdl.handle.net/10251/105856
dc.description.abstract [EN] In the present paper, a simple homogenisation two-step procedure is proposed for the analyses of both in and out of plane loaded masonry walls and 3D structures. The ¿unit cell¿ is discretized with 24 triangular plane constant stress (CST) elements and interfaces. Bricks are specified to behave elastically, whereas mortar joints are set as zero thickness non-linear interfaces. The mechanical response of joints is modelled with different holonomic relationships including two dominant failure modes, namely cracking (mode I) and shear (mode II), or a combination of both (mixed mode). In particular, either a piecewise linear or an improved version of the Xu-Needleman exponential law are used, both exhibiting post peak softening. At the structural level, the homogenisation model is implemented into general purpose commercial FE software, modelling the homogenized orthotropic continuum as a discrete assemblage of Rigid Bodies and Homogenized softening Springs (HRBSM). In such a rigid element model, a variety of springs are introduced, to properly characterize both the in plane homogenized shear and normal behaviour, as well as bending and torque (out of plane behaviour). Momentcurvature relationships are evaluated simply by on thickness integration from the knowledge of in plane homogenized stress-strain relationships. Mechanical properties of homogenized springs are identified via classic energetic identification. Three case studies of technical relevance are finally presented for benchmarking purposes: (i) a windowed shear panel, (ii) a church façade modelled with a portion of the perpendicular walls and (ii) a 3D half scale two story masonry building. es_ES
dc.language Inglés es_ES
dc.publisher International Masonry Society es_ES
dc.relation.ispartof Masonry international es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Simplified homogenisation strategy es_ES
dc.subject Masonry es_ES
dc.subject Discrete model es_ES
dc.subject Dynamic analyses es_ES
dc.title Simple Homogenisation Model for the Non-Linear Analyses of 3D Masonry Structures es_ES
dc.type Artículo es_ES
dc.rights.accessRights Cerrado es_ES
dc.description.bibliographicCitation Bertolesi, E.; Milani, G. (2017). Simple Homogenisation Model for the Non-Linear Analyses of 3D Masonry Structures. Masonry international. 30(1):13-22. http://hdl.handle.net/10251/105856 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://www.openstarts.units.it/bitstream/10077/20550/1/Masonry%20Vo.%2030%2C%20No.%201.pdf#page=21 es_ES
dc.description.upvformatpinicio 13 es_ES
dc.description.upvformatpfin 22 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 30 es_ES
dc.description.issue 1 es_ES
dc.identifier.eissn 2398-757X es_ES
dc.relation.pasarela S\360452 es_ES


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