Luigi Gambarotta - Profile on Academia.edu (original) (raw)
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Papers by Luigi Gambarotta
On the Statics of the Dome of the Basilica of S. Maria Assunta in Carignano, Genoa
Masonry Structures: Between Mechanics and Architecture, 2015
The paper is addressed to the analysis of low-frequency wave propagation in materials with period... more The paper is addressed to the analysis of low-frequency wave propagation in materials with periodic microstructure. A second-gradient continuum model is derived, which provides a sufficiently accurate simulation of for a wide range of wavelengths and a useful tool for the wave propagation analysis in bounded domains. The multi-scale kinematics is described through micro-fluctuation functions of the displacement field, which are derived by the solution of a recurrent sequence of cell BVPs and obtained as the superposition of a static and dynamic contribution. The latters are proportional to the even powers of the phase velocity and consequently the micro-fluctuation functions also depend on the direction of propagation. Therefore, both the higher order elastic moduli and the inertial terms results to depend on dynamic correctors. This approach is applied to the study of wave propagation in layered bimaterials with orthotropic phases, having an axis of orthotropy parallel to the direction of layering, in which case, the overall elastic and inertial constants can be determined analytically. The reliability of the proposed procedure is analysed by comparing the obtained dispersion functions with those derived by the Floquet-Bloch theory.
Keywords: layered materials, damage, strain localization, second order homogenization.
A simplified evaluation of the influence of the bond pattern on the brickwork limit strength
Multiscale modeling of periodic chiral cellular materials
Multi-scale modelling of periodic masonry: size effects, characteristic lengths and dispersive waves
A computational high-continuity approach to the multi-scale static and dynamic modeling of materials with periodic microsrtucture
High-continuity multi-scale static and dynamic modelling of periodic materials
Strain localization analysis of layered materials with debonding interfaces by a second-order homogenization approach
Sulla risposta sismica di edifici multipiano a struttura spaziale
Propagazione della frattura a fatica in lastre sollecitate biassialmente
Structural analysis of Roman honorary arches: Constantine's Arch
Numerical evaluation of the influence of frictional sliding in the behaviour of microcracked solids
Dynamic analysis of microcracked beams with internal friction
Il personal computer nella progettazione edilizia con il metasistema BASIS
THEORETICAL EVALUATION OF THE FRICTIONAL DAMPING OF ROCKS. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1-3
Analisi lineare di edifici multipiano a struttura spaziale
Analisi di edifici multipiano a struttura spaziale in regime di grandi spostamenti
On the Statics of the Dome of the Basilica of S. Maria Assunta in Carignano, Genoa
Masonry Structures: Between Mechanics and Architecture, 2015
The paper is addressed to the analysis of low-frequency wave propagation in materials with period... more The paper is addressed to the analysis of low-frequency wave propagation in materials with periodic microstructure. A second-gradient continuum model is derived, which provides a sufficiently accurate simulation of for a wide range of wavelengths and a useful tool for the wave propagation analysis in bounded domains. The multi-scale kinematics is described through micro-fluctuation functions of the displacement field, which are derived by the solution of a recurrent sequence of cell BVPs and obtained as the superposition of a static and dynamic contribution. The latters are proportional to the even powers of the phase velocity and consequently the micro-fluctuation functions also depend on the direction of propagation. Therefore, both the higher order elastic moduli and the inertial terms results to depend on dynamic correctors. This approach is applied to the study of wave propagation in layered bimaterials with orthotropic phases, having an axis of orthotropy parallel to the direction of layering, in which case, the overall elastic and inertial constants can be determined analytically. The reliability of the proposed procedure is analysed by comparing the obtained dispersion functions with those derived by the Floquet-Bloch theory.
Keywords: layered materials, damage, strain localization, second order homogenization.
A simplified evaluation of the influence of the bond pattern on the brickwork limit strength
Multiscale modeling of periodic chiral cellular materials
Multi-scale modelling of periodic masonry: size effects, characteristic lengths and dispersive waves
A computational high-continuity approach to the multi-scale static and dynamic modeling of materials with periodic microsrtucture
High-continuity multi-scale static and dynamic modelling of periodic materials
Strain localization analysis of layered materials with debonding interfaces by a second-order homogenization approach
Sulla risposta sismica di edifici multipiano a struttura spaziale
Propagazione della frattura a fatica in lastre sollecitate biassialmente
Structural analysis of Roman honorary arches: Constantine's Arch
Numerical evaluation of the influence of frictional sliding in the behaviour of microcracked solids
Dynamic analysis of microcracked beams with internal friction
Il personal computer nella progettazione edilizia con il metasistema BASIS
THEORETICAL EVALUATION OF THE FRICTIONAL DAMPING OF ROCKS. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1-3
Analisi lineare di edifici multipiano a struttura spaziale
Analisi di edifici multipiano a struttura spaziale in regime di grandi spostamenti