Luigi Gambarotta - Academia.edu (original) (raw)

Papers by Luigi Gambarotta

Research paper thumbnail of Non-local modelling of blocky rock masses with periodic jointed structure

Research paper thumbnail of Multi-scale modelling of periodic masonry: size effects, characteristic lengths and dispersive waves

Research paper thumbnail of A computational high-continuity approach to the multi-scale static and dynamic modeling of periodic materials

Research paper thumbnail of Strain localization analysis of layered materials with soft interfaces based on a second-order homogenization approach

Research paper thumbnail of Second grade modeling for the strain localization analysis of layered materials with damaging interfaces

Keywords: layered materials, damage, strain localization, second order homogenization.

Research paper thumbnail of A computational high-continuity approach to the multi-scale static and dynamic modeling of materials with periodic microsrtucture

Research paper thumbnail of Second-gradient computational homogenization of periodic materials

Research paper thumbnail of Sicurezza statica del sistema cupola-tamburo: il caso della Basilica di S. Maria Assunta di Carignano a Genova

Research paper thumbnail of Dispersive wave propagation in anisotropic materials with periodic microstructure

Research paper thumbnail of Thermo-Inelasticity and Damage

ABSTRACT OverviewDamage in quasi-brittle materials takes place progressively with a nonlinear res... more ABSTRACT OverviewDamage in quasi-brittle materials takes place progressively with a nonlinear response and greater strength under compression than tension. This damage behavior may be interpreted as an effect of micro-crack nucleation and growth inside an elastic matrix. Because these materials sustain mainly compressive stresses, the resulting stress field in the microstructure turns out to be compressive and the opposite edges of the micro-cracks are closed. Because of the roughness of the micro-crack edges, their contact is characterized by friction that is coupled with damage mechanisms. Consequently, the mechanical response of these materials to compressive stress states is nonlinear and dissipative due to the simultaneous presence of two coupled deformation processes consisting of the progressive propagation of micro-cracks together with the frictional sliding between the crack faces. This interpretation of the micro-crack effects on the mechanisms of inelastic deformation makes c ...

Research paper thumbnail of A micropolar model for the analysis of dispersive waves in chiral mass-in-mass lattices

Research paper thumbnail of Homogenization of periodic chiral lattices

Research paper thumbnail of Collapse analysis of double ogival domes: the case of Basilica of S. Maria of Carignano in Genoa

Research paper thumbnail of Sulla sicurezza strutturale di cupole ogivali rinascimentali: la basilica di S. Maria di Carignano in Genova

Research paper thumbnail of The effect of CFRP reinforcement on eccentrically loaded solid clay brick masory

Research paper thumbnail of Mechanical Characterization of Human Skin From In-Vivo Tests and Simulation of Reconstructive Surgery

Research paper thumbnail of History-based assessment of the Dome of the Basilica of S. Maria of Carignano in Genoa

Research paper thumbnail of Comportamento non lineare della muratura: modelli costitutivi, risultati sperimentali ed identificazione parametrica: tesi presentata per il conseguimento del titolo di Dottore di ricerca

Research paper thumbnail of On the collapse mechanisms of multi-span masonry bridges

An incremental-iterative procedure for the non-linear analysis of multi-span masonry arch bridges... more An incremental-iterative procedure for the non-linear analysis of multi-span masonry arch bridges is developed and implemented by standard programming of a commercial F.E. code assuming masonry no tensile resistant (NTR) and perfectly elasto-plastic in compression. The procedure is applied to different arch geometries pointing out the effect on the collapse mechanism of the arch geometric parameters and of the material mechanical ones. Twin-and three-span models are studied and compared to a classical single-span assessment method; the elasto-plastic response of masonry is found to have great effect on the limit load of both shallow and deep arches, while abutment compliance and interaction between adjacent spans has to be taken into account for shallow arch bridges only, being of minor importance for deep arches.

Research paper thumbnail of Strength of eccentrically compressed brickwork pillars: a theoretical and experimental analysis

Research paper thumbnail of Non-local modelling of blocky rock masses with periodic jointed structure

Research paper thumbnail of Multi-scale modelling of periodic masonry: size effects, characteristic lengths and dispersive waves

Research paper thumbnail of A computational high-continuity approach to the multi-scale static and dynamic modeling of periodic materials

Research paper thumbnail of Strain localization analysis of layered materials with soft interfaces based on a second-order homogenization approach

Research paper thumbnail of Second grade modeling for the strain localization analysis of layered materials with damaging interfaces

Keywords: layered materials, damage, strain localization, second order homogenization.

Research paper thumbnail of A computational high-continuity approach to the multi-scale static and dynamic modeling of materials with periodic microsrtucture

Research paper thumbnail of Second-gradient computational homogenization of periodic materials

Research paper thumbnail of Sicurezza statica del sistema cupola-tamburo: il caso della Basilica di S. Maria Assunta di Carignano a Genova

Research paper thumbnail of Dispersive wave propagation in anisotropic materials with periodic microstructure

Research paper thumbnail of Thermo-Inelasticity and Damage

ABSTRACT OverviewDamage in quasi-brittle materials takes place progressively with a nonlinear res... more ABSTRACT OverviewDamage in quasi-brittle materials takes place progressively with a nonlinear response and greater strength under compression than tension. This damage behavior may be interpreted as an effect of micro-crack nucleation and growth inside an elastic matrix. Because these materials sustain mainly compressive stresses, the resulting stress field in the microstructure turns out to be compressive and the opposite edges of the micro-cracks are closed. Because of the roughness of the micro-crack edges, their contact is characterized by friction that is coupled with damage mechanisms. Consequently, the mechanical response of these materials to compressive stress states is nonlinear and dissipative due to the simultaneous presence of two coupled deformation processes consisting of the progressive propagation of micro-cracks together with the frictional sliding between the crack faces. This interpretation of the micro-crack effects on the mechanisms of inelastic deformation makes c ...

Research paper thumbnail of A micropolar model for the analysis of dispersive waves in chiral mass-in-mass lattices

Research paper thumbnail of Homogenization of periodic chiral lattices

Research paper thumbnail of Collapse analysis of double ogival domes: the case of Basilica of S. Maria of Carignano in Genoa

Research paper thumbnail of Sulla sicurezza strutturale di cupole ogivali rinascimentali: la basilica di S. Maria di Carignano in Genova

Research paper thumbnail of The effect of CFRP reinforcement on eccentrically loaded solid clay brick masory

Research paper thumbnail of Mechanical Characterization of Human Skin From In-Vivo Tests and Simulation of Reconstructive Surgery

Research paper thumbnail of History-based assessment of the Dome of the Basilica of S. Maria of Carignano in Genoa

Research paper thumbnail of Comportamento non lineare della muratura: modelli costitutivi, risultati sperimentali ed identificazione parametrica: tesi presentata per il conseguimento del titolo di Dottore di ricerca

Research paper thumbnail of On the collapse mechanisms of multi-span masonry bridges

An incremental-iterative procedure for the non-linear analysis of multi-span masonry arch bridges... more An incremental-iterative procedure for the non-linear analysis of multi-span masonry arch bridges is developed and implemented by standard programming of a commercial F.E. code assuming masonry no tensile resistant (NTR) and perfectly elasto-plastic in compression. The procedure is applied to different arch geometries pointing out the effect on the collapse mechanism of the arch geometric parameters and of the material mechanical ones. Twin-and three-span models are studied and compared to a classical single-span assessment method; the elasto-plastic response of masonry is found to have great effect on the limit load of both shallow and deep arches, while abutment compliance and interaction between adjacent spans has to be taken into account for shallow arch bridges only, being of minor importance for deep arches.

Research paper thumbnail of Strength of eccentrically compressed brickwork pillars: a theoretical and experimental analysis