04- Contributo in atti di convegno

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Numerical modelling of the response of an unsaturated silty soil under wetting and gravitational loading processes

This paper presents the results of a numerical study aiming at simulating the response of an unsaturated fine-grained soil under wetting and gravitational loading processes. This study is based on the results of some centrifuge tests carried out to assess the influence of partial saturation on the laterally loaded pile response. The hydro-mechanical behaviour of the silty soil is described using a constitutive model adapted to unsaturated conditions. The model predictions are compared with th...

Mechanical model of fiber morphogenesis in the liver

We give a description of fibroblast cell diffusion in a soft tissue, paying special attention to the coupling of force, matter and microforce balance laws through a suitable dissipation principle. To this end we cast our framework into a multi-level schematics, comprising both kinematics and kinetics, which is based on a characterization of the free energy. This way we lay down first a force balance law, where force and stress fields are defined as power conjugate quantities to velocity field...

A computational method to automatically detect the perceived origin of full-body human movement and its propagation

The work reports ongoing research about a computational method, based on cooperative games on graphs, aimed at detecting the perceived origin of full-body human movement and its propagation. Compared with previous works, a larger set of movement features is considered, and a ground truth is produced, able to assess and compare the effectiveness of each such feature. This is done through the use of the Shapley Value as a centrality index. An Origin of Movement Continuum is also defined,...

Deep Learning for Cavitating Marine Propeller Noise Prediction at Design Stage

Reducing the noise impact of ships on the marine environment is one of the objectives of new propellers designs, since they represent the dominant source of underwater radiated noise, especially when cavitation occurs. Consequently, ship designers require new predictive tools able to verify the compliance with noise requirements and to compare the effectiveness of different design solutions. In this context, tools able to provide a reliable estimate of propeller noise spectra based just on th...

Physical modelling of piles under lateral loading in unsaturated soils

In this paper, selected aspects of an experimental study conducted in a geotechnical centrifuge are discussed. The tests aimed to explore the effects of partial saturation of soil on the response of a single pile subjected to a combination of lateral force and bending moment under drained conditions. The soil used in the experiments is a low plasticity silty soil, named B-grade kaolin, characterized by a relatively high permeability compared to the typical values for clayey soils. Two differe...

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