Initiation of Failure for Masonry Subject to In-Plane Loads through Micromechanics

Berardi, Valentino Paolo

doi:10.1155/2016/2959038

Cited by 3 publications

(3 citation statements)

References 45 publications

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“…Grande et al [5] proposed a new method for determining the nonlinear response by examining unreinforced and FRP-reinforced masonry walls under vertical in-plane and lateral loads. Berardi [6] used the Meso mechanical method to evaluate the onset of cracking and rupture of the masonry wall under in-plane load. Panto et al [7] numerically examined the masonry walls under the off-plane load using 3D discrete macro element models.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of masonry wall under underground waves

2021

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The dynamic behavior of structures has always received considerable attention. The dynamic behavior of structures requires a suitable numerical modeling method for the behavior of structures under dynamic loads to be illustrated. In this study, the response of two identical unreinforced masonry walls to the underground blast was examined. The experimental variables were the horizontal distance from the explosion point and the depth in which the explosives were located. After examining the behavior of the masonry walls under high-frequency dynamic loads, different numerical models were applied to simulate the dynamic behavior of these two walls against the underground blast experiments. Thus, several different factors, including yield criterion, types of Meso and macro modeling for the masonry wall, and topography of the site were investigated. Finally, due to the degree of accuracy required, it was concluded that each of the methods can be used; however, the most appropriate and accurate modeling method for the unreinforced masonry wall is the frictional-cohesive zone material and modified Mohr-Coulomb model, which provided accurate and precise responses.

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Section: Introductionmentioning

confidence: 99%

Numerical modeling of masonry wall under underground waves

2021

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“…Asteris et al [20] used a macromodelling approach for the analysis of infilled frame structures. Berardi [21] used a micromechanical procedure in order to evaluate the initiation of damage and failure of masonry with in-plane loads. Ridwan et al [22] proposed a new simplified formula for the calculation of the equivalent modulus of elasticity of masonry structures.…”

Section: Introductionmentioning

confidence: 99%

Anisotropy Effect of Masonry on the Behaviour and Bearing Capacity of Masonry Walls

Zulim

Radnić

2020

Advances in Materials Science and Engineering

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Firstly, an updated numerical model for the numerical analysis of planar unreinforced and confined masonry walls is presented. The model can simulate the main nonlinear material effects of masonry and reinforced concrete. A simplified anisotropic constitutive model for masonry is developed and presented. The criteria for the limit bearing capacity and collapse of masonry are separately defined for normal stresses only and for normal and shear stresses. The presented numerical model is verified and used to analyse the anisotropy effect of masonry on the behaviour of unreinforced and confined two-story anisotropic masonry walls with different coefficients of anisotropy, wall lengths, and quality of masonry under horizontal static forces. The influence of the anisotropy coefficient of the masonry on the response of the walls is discussed in detail, and the main conclusions are given.

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“…Several mechanical models available in literature are based on either local failure mechanisms (Fraternali, 2007;Berardi., 2016) or the Heyman limit analysis approach (Heyman, 1995). With reference to arches, the safe theorem of Heyman states that the structure is safe if a line of thrust (funicular curve) in equilibrium with the external loads and entirely contained within the volume of the structure can be found.…”

Section: Introductionmentioning

confidence: 99%

On the statics of curved masonry structures via numerical models

Berardi

Piano

2018

PRR

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PurposeThis paper aims to review recent literature results on the equilibrium problem and the strengthening design of masonry vaults. Design/methodology/approachA Lumped Stress Method (LSM) is considered within the Heyman’s safe theorem, based on the definition of thrust surface of a masonry curved structure. In particular, the static problem of the vault is formulated by introducing a membrane continuous of the studied masonry structure to associate with a spatial truss through a nonconforming variational approximation of the thrust surface and membrane stress potential. A tensegrity approach based on a minimal mass design strategy, different strengths in tension and compression of the material is discussed within the strengthening strategy of masonry vaults. FindingsThe numerical results have highlighted the efficacy of the two numerical approaches to assess the vulnerability of existing structures and design optimal strengthening interventions of these structures. Originality/valueThe presented models can represent fast and useful tools to assess the vulnerability of existing structures and design optimal strengthening interventions with composite materials of these structures.

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Initiation of Failure for Masonry Subject to In-Plane Loads through Micromechanics

Cited by 3 publications

References 45 publications

Numerical modeling of masonry wall under underground waves

Numerical modeling of masonry wall under underground waves

Anisotropy Effect of Masonry on the Behaviour and Bearing Capacity of Masonry Walls

On the statics of curved masonry structures via numerical models

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