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Cauchy and Cosserat Equivalent Continua for the Multiscale Analysis of Periodic Masonry Walls

  • Daniela Addessi
  • Elio Sacco
Part of the Lecture Notes in Applied and Computational Mechanics book series (LNACM, volume 58)

Abstract

The present paper deals with the problem of the determination of the in-plane behavior of periodic masonry material. Masonry is considered a composite material obtained as a regular distribution of blocks connected by horizontal and vertical mortar joints. The macromechanical equivalent Cauchy and Cosserat models are derived by means of the homogenization procedure, which make use of the Transformation Field Analysis (FTA) in order to account for the nonlinear effects occurring in the components. The micromechanical analysis is developed considering a Cauchy model for the masonry components. In particular, the linear elastic constitutive relationship is considered for the blocks, while a nonlinear constitutive law is proposed for the mortar joints, accounting for the damage and friction phenomena occurring during the loading history. Numerical applications are performed in order to assess the performances of the proposed models in reproducing the mechanical behavior of the masonry material. In particular, two different masonry textures are considered, remarking their different behavior.Moreover, for one masonry texture, the response is derived considering two possible RVEs.

Keywords

Representative Volume Element Inelastic Strain Masonry Wall Mortar Joint Cosserat Continuum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Daniela Addessi
    • 1
  • Elio Sacco
    • 2
  1. 1.Department of Structural EngineeringUniversity of Rome “Sapienza”RomeItaly
  2. 2.Department of Mechanics, Structures and EnvironmentUniversity of CassinoCassinoItaly

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