Multiscale analysis of masonry vaults coupling shell elements to 3D-Cauchy continuum
Daniela Addessi, Paolo Di Re, Cristina Gatta, Elio Sacco
download PDFAbstract. 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 zero-thickness 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.
Keywords
Multiscale, Masonry, Vault
Published online 3/17/2022, 5 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Daniela Addessi, Paolo Di Re, Cristina Gatta, Elio Sacco, Multiscale analysis of masonry vaults coupling shell elements to 3D-Cauchy continuum, Materials Research Proceedings, Vol. 26, pp 349-353, 2023
DOI: https://doi.org/10.21741/9781644902431-57
The article was published as article 57 of the book Theoretical and Applied Mechanics
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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