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Simple holonomic homogenization model for the non-linear static analysis of in-plane loaded masonry walls strengthened with FRCM composites

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Simple holonomic homogenization model for the non-linear static analysis of in-plane loaded masonry walls strengthened with FRCM composites

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dc.contributor.author Bertolesi, Elisa es_ES
dc.contributor.author Milani, Gabriele es_ES
dc.contributor.author Poggi, Carlo es_ES
dc.date.accessioned 2018-09-17T08:18:14Z
dc.date.available 2018-09-17T08:18:14Z
dc.date.issued 2016 es_ES
dc.identifier.issn 0263-8223 es_ES
dc.identifier.uri http://hdl.handle.net/10251/107427
dc.description.abstract [EN] A two-step homogenization procedure for fast non-linear static analyses of FRCM (Fabric Reinforced Cementitious Matrix) composites reinforced masonry walls in-plane loaded is presented and benchmarked on a series of FRCM strengthened tuff panels experimentally tested under diagonal compression at the University of Naples, Italy. The numerical model relies into a first homogenization step where the unreinforced masonry is substituted with an equivalent homogenized non-linear orthotropic material exhibiting softening. The elementary cell is discretized by means of few triangular elastic elements (bricks) and holonomic interfaces (joints) where all the non-linearity is lumped. The standard homogenization model so obtained is characterized by either two or three unknowns under biaxial and shear stress states, respectively. The homogenized behavior of the elementary cell is thus deduced solving small scale non-linear equations systems. The second step relies into the strengthening application to the already homogenized material at a structural level. In such phase, masonry is modeled with rigid quadrilateral elements and homogenized holonomic interfaces, whereas FRCM by means of equivalent trusses with limited tensile strength and fragile behavior, connecting adjoining rigid elements. Equivalent mechanical properties of the trusses can be eventually tuned accounting for FRCM debonding or rupture of the fibers. In order to further assess the results obtained using homogenization, a 3D large scale heterogeneous micro-modeling strategy is used to reproduce experimental results. Pros and cons of the two approaches are discussed with respect to their reliability in fitting experimental force-displacement curves and crack patterns, as well as to the rather different computational effort required by the two strategies. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Composite Structures es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Tuff masonry es_ES
dc.subject FRCM strengthening es_ES
dc.subject Homogenized approach es_ES
dc.subject Masonry strengthening es_ES
dc.subject Diagonal compression tests es_ES
dc.title Simple holonomic homogenization model for the non-linear static analysis of in-plane loaded masonry walls strengthened with FRCM composites es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.compstruct.2016.09.027 es_ES
dc.rights.accessRights Cerrado es_ES
dc.description.bibliographicCitation Bertolesi, E.; Milani, G.; Poggi, C. (2016). Simple holonomic homogenization model for the non-linear static analysis of in-plane loaded masonry walls strengthened with FRCM composites. Composite Structures. 158:291-307. doi:10.1016/j.compstruct.2016.09.027 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.compstruct.2016.09.027 es_ES
dc.description.upvformatpinicio 291 es_ES
dc.description.upvformatpfin 307 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 158 es_ES
dc.relation.pasarela 357062 es_ES


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