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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.

A delamination model for laminated composites is proposed. A damage variable takes into account the degradation of the adhesive properties of the interfaces. It is described by a nonsmooth, nonconvex functional [1].

An introduction to Unilateral Dynamics.- Large Structures Behaviour: the Past and the Future.- Convex Difference Algorithm and Applications to Some Mechanical Problems.- Adhesively Bonded Joints in Civil Engineering: some Physico-chemical Aspects Related to the Mechanical Behaviour.- On the Role of Interface Energies in the Description of Material Behavior.- Equilibrium of Masonry Vaults.- Micromechanical Analysis of Reinforced Masonry.- Localization Analysis in Dilatant Elasto-Plastic Solids by a Strong-Discontinuity Method.- Elasto-plastic Modelling of the Behaviour of Granular Soil-structure Interfaces.- Neural-Fuzzy Modelling to Analyse Complex Geotechnical Systems.- Speckle and Infrared Images Processing Applied to the Analysis of the Thermomechanical Behaviour of a Semicrystalline Polymer.- A Delamination Model.- Granular Decohesion Thermal-Damage in Marble Monuments.- Study of Thermal and Kinematic Phenomena Associated with Quasi-static Deformation and Damage Process of some Concretes.- Using Infrared Thermography for the Experimental Analysis of the Thermal Profile of Building Elements Subjected to Thermal and Mechanical Action.- Strains and Stresses Induced by Water Transport in Hygroscopic Elastic Media.- Numerical Algorithm for a Three-dimensional Stress-induced Solid-phase-transformation Model.- Interaction Energy in some Phenomenological Modelings of Phase Transitions in Crystalline Solids.- Thermomechanical Couplings and Scale Transitions in Mechanics of Materials.- Bioelectrical Impedance Analysis: a Matter of Homogenization of Composites with Imperfect Interfaces.- Passive Vibration Damping of Piezoactuated Structures by Using Enhanced Shunt Electric Circuits.- Flexure Waves in Electroelastic Plates.- On the Plating of Reinforced Concrete Beams with Composite Laminates.- Modelling of Fibre Reinforced Concrete.- Influence of the Steel Properties on the Ductility of R.C. Structures.- Wavelet Analysis of Transient Signals in Civil Engineering.- Dynamic Identification of Physical Parameters with Subspace State Models.- Application of the Wavelet-element Method to Linear Random Materials.- Towards Tensegrity Systems Design.- Density Methods Applied to Form Finding of Initially Stressed Systems.- Simple Analytical Models of Tensegrity Structures.- Modelling and Simulation of Long-Span Bridges under Aerodynamic Loads.- Collisions Involving Solids and Fluids.