The choice of an appropriate model for the description of the structural behavior of masonry structuresis a focal point in the design of structural interventions. The difficulties that can be encountered are justifiedby the complex physical nature of masonries and the rules of thumb which are at the base of theirbuilding techniques and gave rise to a wide variety of artifacts over time. One of the most convincingways to investigate the mechanical behaviour of masonries consists in describing the assembly as a systemof blocks interacting through deformable interfaces ([1]–[2]). However, this approach rapidly becomesso numerically cumbersome as to call for equivalent continua formulations ([3]–[7]). Assuming that the system is periodic, a representative volume element (module) is chosen, which is large enough to be a representative part of the discrete system and sufficiently small to take advantage of the localizationtheorem. The constitutive relationships are determined by requiring the equivalence between the mean work of the contact actions of the module and the internal density work of the continuum which occupies the same region of space. The applicability of the present approach relies on the possibility to describe masonries as a discrete system where the interfaces dominate the gross behaviour.

Relative rotations in block masonries as equivalent micropolar and second-gradient continua / Pau, Annamaria; Trovalusci, Patrizia. - ELETTRONICO. - (2012). ((Intervento presentato al convegno ECCOMAS 2012, 6th European Congress on Computational Methods in Applied Sciences and Engineering tenutosi a Vienna, Austria nel 10-14 settembre.

Relative rotations in block masonries as equivalent micropolar and second-gradient continua

PAU, Annamaria;TROVALUSCI, Patrizia
2012

Abstract

The choice of an appropriate model for the description of the structural behavior of masonry structuresis a focal point in the design of structural interventions. The difficulties that can be encountered are justifiedby the complex physical nature of masonries and the rules of thumb which are at the base of theirbuilding techniques and gave rise to a wide variety of artifacts over time. One of the most convincingways to investigate the mechanical behaviour of masonries consists in describing the assembly as a systemof blocks interacting through deformable interfaces ([1]–[2]). However, this approach rapidly becomesso numerically cumbersome as to call for equivalent continua formulations ([3]–[7]). Assuming that the system is periodic, a representative volume element (module) is chosen, which is large enough to be a representative part of the discrete system and sufficiently small to take advantage of the localizationtheorem. The constitutive relationships are determined by requiring the equivalence between the mean work of the contact actions of the module and the internal density work of the continuum which occupies the same region of space. The applicability of the present approach relies on the possibility to describe masonries as a discrete system where the interfaces dominate the gross behaviour.
2012
ECCOMAS 2012, 6th European Congress on Computational Methods in Applied Sciences and Engineering
04 Pubblicazione in atti di convegno::04d Abstract in atti di convegno
Relative rotations in block masonries as equivalent micropolar and second-gradient continua / Pau, Annamaria; Trovalusci, Patrizia. - ELETTRONICO. - (2012). ((Intervento presentato al convegno ECCOMAS 2012, 6th European Congress on Computational Methods in Applied Sciences and Engineering tenutosi a Vienna, Austria nel 10-14 settembre.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/444437
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