Strength domain of non-periodic masonry by homogenization in generalized plane state

Cavalagli, Nicola; Cluni, Federico; Gusella, Vittorio

doi:10.1016/j.euromechsol.2010.10.009

Cited by 38 publications

(27 citation statements)

References 30 publications

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“…Application of the proposed integrated fracture approach to other quasi‐brittle materials, as mortars, rocks, fiber‐reinforced or particle‐reinforced composites, some types of ceramics, masonries, etc. In particular, the in‐plane response of masonry structures (of both unreinforced and reinforced type) could be easily predicted by the adopted DIM, allowing different failure mechanisms of individual phases (eg, mortar and bricks) to be correctly captured, involving a priori unknown complex crack patterns, whose influence of the overall nonlinear mechanical behavior has been extensively demonstrated in the literature (see, for instance,).…”

Section: Discussionmentioning

confidence: 99%

A refined diffuse cohesive approach for the failure analysis in quasibrittle materials—part II: Application to plain and reinforced concrete structures

Maio

Greco

Leonetti

et al. 2019

Fatigue Fract Eng Mat Struct

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This work presents the numerical application of the diffuse cohesive interface model introduced in the Part I paper to the failure analysis of plain and reinforced concrete structures, subjected to complex loading conditions, inducing mixed‐mode fracture initiation and propagation. With the aim of capturing the interaction between concrete and steel reinforcements, the adopted fracture model is incorporated in a novel, more general numerical framework for the nonlinear analysis of reinforced concrete structures. Such a framework includes a newly proposed embedded truss model for the reinforcing bars, allowing them to be crossed by the neighboring propagating cracks. Comparisons with available experimental results are provided, assessing the reliability and the numerical accuracy of the proposed concrete model, with reference to plain specimens subjected to single‐crack propagation as well as to reinforced elements subjected to multiple cracking.

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Section: Discussionmentioning

confidence: 99%

A refined diffuse cohesive approach for the failure analysis in quasibrittle materials—part II: Application to plain and reinforced concrete structures

Maio

Greco

Leonetti

et al. 2019

Fatigue Fract Eng Mat Struct

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“…Considering the masonry as a bi-phase composite, built by mortar and bricks (or stones), the mechanical behaviour is depending on the actual texture, both in elastic field [1,2] and in plastic one [3,4].…”

Section: Introductionmentioning

confidence: 99%

Masonry elastic characteristics assessment by thermographic images

2019

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In the present paper, the elastic mechanical characteristics of masonry samples, whose texture is not visible due to plaster, are estimated by means of homogenization technique applied through thermographic images. In particular, three masonry samples with different textures have been purposely built. The textures chosen were periodic, quasi-periodic and random. The images, taken with a thermocamera, have been analyzed in order to identify the texture. An homogenization technique, based on the application of appropriate boundary conditions, has been used. The mechanical characteristics obtained using the textures identified using photographic images and thermographic images have been compared. The influence of some parameters (such as the dimensions of the structural element used in morphological operator) are analysed. The obtained results permits to point out the reliability of the masonry elastic characteristics assessment by the proposed procedure.

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“…Several approaches have been used for periodic masonry such as the homogenization theory in the elastic and plastic field, multi-scale approaches, the definition of specific numerical methods and discrete element methods (Lourenço 1996). Dealing with nonperiodic masonry, the homogenization approaches and probabilistic models have been used to estimate the equivalent mechanical properties of the homogenized continuum in terms of both the elastic stiffness and the strength domain (Gusella and Cluni 2006;Cavalagli, Cluni, and Gusella 2011;Milani and Lourenço 2010).…”

Section: Introductionmentioning

confidence: 99%

Structural Investigation of 18th-Century Ogival Masonry Domes: From Carlo Fontana to Bernardo Vittone

Cavalagli

Gusella

2014

International Journal of Architectural Heritage

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In this study a structural investigation on the ogival masonry domes is performed with particular attention to the significant debate between mathematicians and architects mainly of the French and Italian schools that characterized the 18th century. In this period, analytical approaches to investigate the static of dome structures were developed concurrently for the affirmation of the proportional methods, as reported in several architectural treatises in which graphical constructions for the design of masonry domes can be found. It is well known that Carlo Fontana, in 1694, was the first to show in detail the geometrical rules for the design of a masonry dome. Later, in 1760, the Italian architect Bernardo Antonio Vittone proposed some variations to the rules written by Fontana in order to increase the height of the dome and the slope of the meridian section at the intersection with the lantern. In this study, Vittone's dome has been analyzed and compared with Fontana's dome by means of an analytical approach that also considers the influence of the lantern at the top. The obtained results confirm that Vittone's rules lead not only to architectural, but also structural improvements.

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Strength domain of non-periodic masonry by homogenization in generalized plane state

Cited by 38 publications

References 30 publications

A refined diffuse cohesive approach for the failure analysis in quasibrittle materials—part II: Application to plain and reinforced concrete structures

A refined diffuse cohesive approach for the failure analysis in quasibrittle materials—part II: Application to plain and reinforced concrete structures

Masonry elastic characteristics assessment by thermographic images

Structural Investigation of 18th-Century Ogival Masonry Domes: From Carlo Fontana to Bernardo Vittone

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