Foto del docente

Stefano de Miranda

Full Professor

Department of Civil, Chemical, Environmental, and Materials Engineering

Academic discipline: ICAR/08 Structural Mechanics

Research

Keywords: finite elements structural analysis wind engineering masonry structures environmental aging of materials and structures salt crystallization advanced materials virtual element method

- masonry structures: the main contributions concern the development of numerical modeling strategies for cultural heritage structural analysis, the development of models for detailed structural analysis also in the presence of cyclic loads or reinforcement systems, analysis of vaulted structures, structural identification in historical buildings;

- computational wind engineering: the main contributions concern the development of techniques for the evaluation of equivalent static loads, the evaluation of flutter derivatives of bridge decks, numerical analyses for the study of wind loads on structures/structural elements with particular attention to the effects of atmospheric turbulence;

- effects of environmental actions in porous materials and masonry structures: the main contributions concern the development of multiphase models for the analysis of transport and crystallization of salts also in the presence of reinforcement systems, the formulation of multiscale approaches for the analysis of mechanical effects of salt crystallization in porous materials and for the hygro-mechanical analysis of masonry walls;

 - virtual element method (VEM): the main contributions concern the development of mixed/hybrid approaches for plane elasticity problems, stress recovery techniques, error estimation and adaptive mesh refinement, development of displacement-based enhanced formulations for the analysis of plane elasticity problems and elastic plates;

- composite materials characterized by non-linear behavior of the constituents: the main contributions concern the development of homogenization techniques for the analysis of elastic-plastic and elastic-viscoplastic composites and their use in multiscale analysis;

- thin-walled beams within the Generalized Beam Theory: the main contributions concern the formulation and analysis of models of shear deformable beams, the development of corotational approaches for geometrically non-linear analysis, stress recovery techniques, development of finite element models and consistency analysis;

- stress recovery and error estimation in finite element analysis: the main contributions concern the development of patch-based procedures for stress recovery in both elastic and elastoplastic problems, the a posteriori estimation of the discretization error, adaptive mesh refinement techniques;

- elastic plates: the main contributions concern the development of mixed/hybrid stress finite element models for the analysis of homogeneous and laminated plates, the development of procedures for the reconstruction of the transverse stresses in laminated plates, the constitutive identification of laminated plates, development of corotational approaches for nonlinear analysis;

- structural dynamics: the main contributions concern the development of mixed stress finite elements, the formulation of time integration methods for non-linear elastodynamics, non-linear dynamic analysis of both flexible and semi-rigid rockfall barriers aimed at their virtual prototyping;

- ceramic components: the main contributions concern the numerical modeling of the production process of ceramic sanitary ware aimed at identifying the shape of the mold known the design of the sanitary ware, the simulation of the compaction process of powders at the mesoscale;

- pressure pipelines: the main contributions concern the development of models for the structural analysis of cracked pressure pipelines aimed at estimating losses;



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