This study adopts an enhanced multiscale approach to investigate the effects of the damaging process on the structural behavior of masonry vaults with regular texture, in view of their safety assessment. The model, recently developed by the authors, links two different structural models at macro and microscale, exploiting the advantages of each formulation. At the macroscopic level a homogeneous Mindlin-Reissner shell is modeled and its constitutive response is derived by the detailed analysis of a three-dimensional (3D) masonry Unit Cell (UC) studied at microlevel. The UC is considered as the assembly of elastic bricks and damage-plastic zerothickness interfaces, representative of both mortar and mortar-unit interaction, thus accounting for the actual geometry, arrangement and constitutive response of each constituent material. A Transformation Field Analysis procedure is used to link the two scales, speeding up the numerical simulations. Structural response of a masonry vault under differential settlements is investigated, determining its load-bearing capacity and the damaging path evolving in the structure up to collapse. The reliability of the results is proved by comparison with outcomes derived by detailed micromechanical analysis, interpreting and arguing similarities and differences. © 2023, Association of American Publishers. All rights reserved.

Multiscale analysis of masonry vaults coupling shell elements to 3D-Cauchy continuum / Addessi, D.; Di Re, P.; Gatta, C.; Sacco, E.. - 26:(2023), pp. 349-353. (Intervento presentato al convegno 25th Conference of the Italian Association of Theoretical and Applied Mechanics, AIMETA 2022 tenutosi a Palermo, Italia) [10.21741/9781644902431-57].

Multiscale analysis of masonry vaults coupling shell elements to 3D-Cauchy continuum

Addessi D.;Di Re P.;Gatta C.
;
2023

Abstract

This study adopts an enhanced multiscale approach to investigate the effects of the damaging process on the structural behavior of masonry vaults with regular texture, in view of their safety assessment. The model, recently developed by the authors, links two different structural models at macro and microscale, exploiting the advantages of each formulation. At the macroscopic level a homogeneous Mindlin-Reissner shell is modeled and its constitutive response is derived by the detailed analysis of a three-dimensional (3D) masonry Unit Cell (UC) studied at microlevel. The UC is considered as the assembly of elastic bricks and damage-plastic zerothickness interfaces, representative of both mortar and mortar-unit interaction, thus accounting for the actual geometry, arrangement and constitutive response of each constituent material. A Transformation Field Analysis procedure is used to link the two scales, speeding up the numerical simulations. Structural response of a masonry vault under differential settlements is investigated, determining its load-bearing capacity and the damaging path evolving in the structure up to collapse. The reliability of the results is proved by comparison with outcomes derived by detailed micromechanical analysis, interpreting and arguing similarities and differences. © 2023, Association of American Publishers. All rights reserved.
2023
25th Conference of the Italian Association of Theoretical and Applied Mechanics, AIMETA 2022
masonry; multiscale; vault
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Multiscale analysis of masonry vaults coupling shell elements to 3D-Cauchy continuum / Addessi, D.; Di Re, P.; Gatta, C.; Sacco, E.. - 26:(2023), pp. 349-353. (Intervento presentato al convegno 25th Conference of the Italian Association of Theoretical and Applied Mechanics, AIMETA 2022 tenutosi a Palermo, Italia) [10.21741/9781644902431-57].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1680621
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