A5084154289- Geotechnical Engineering and Soil Mechanics
- Rock Mechanics and Modeling
- Drilling and Well Engineering
- Numerical methods in engineering
- Geotechnical Engineering and Underground Structures
- Landslides and related hazards
- Soil and Unsaturated Flow
- Hydraulic Fracturing and Reservoir Analysis
- Geotechnical Engineering and Soil Stabilization
- Composite Material Mechanics
- Nonlocal and gradient elasticity in micro/nano structures
- Mineral Processing and Grinding
- Dam Engineering and Safety
- Geotechnical and Geomechanical Engineering
- Geotechnical and construction materials studies
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Advanced Mathematical Modeling in Engineering
- Contact Mechanics and Variational Inequalities
- High-Velocity Impact and Material Behavior
- Fluid Dynamics Simulations and Interactions
- Nuclear and radioactivity studies
- Thermoelastic and Magnetoelastic Phenomena
- Granular flow and fluidized beds
Ingegneria dei Trasporti (Italy)
2024
University of Naples Federico II
2021-2022
Bentley Systems (United Kingdom)
2019-2022
Northwestern University
2015-2019
Sols, Solides, Structures, Risques
2011-2016
Laboratoire de Mécanique des Sols, Structures et Matériaux
2016
Centre National de la Recherche Scientifique
2012-2014
Université Joseph Fourier
2011-2014
Université Grenoble Alpes
2012
Abstract Recent laboratory evidence shows that compaction creep in porous rocks may develop through stages of acceleration, especially if the material is susceptible to strain localization. This paper provides a mechanical interpretation based on viscoplasticity and nonlinear dynamics. For this purpose, constitutive operator describing evolution defined evaluate spontaneous accumulation pore collapse within an active band. strategy enables determination eigenvalues associated with stability...
Evidence shows that in the presence of extended stages undrained creep, loose sands may approach liquefaction instabilities with a non-negligible time lag respect to application loading. In this paper, mechanical interpretation such delayed failure events is provided by using stability criteria for rate-dependent materials. For purpose, viscoplastic constitutive law has been calibrated replicate processes documented literature. To explain origin transition from stable unstable model...
Finite-element analyses using critical state theory proved necessary to understand the development of static liquefaction during three recent large tailing dam failures at Fundao (in Brazil), Cadia Australia) and Brumadinho Brazil). However, complexity these events prevents being viewed as a complete validation methodology. Here authors evaluate far simpler case liquefaction: 1974 Tar Island slump Canada). This upstream involved rapid drop 5 m construction 12.5 high raise over loose...
Summary This paper presents a theoretical framework to interpret the inception of unstable undrained creep in quasi‐saturated soils. For this purpose, effect gas bubbles occluded fluid phase is embedded into an augmented compressibility mixture, while mechanical characteristics solid skeleton have been simulated through viscoplastic strain‐hardening model. constitutive has used formulate platform able detect runaway failures resulting from extended stages creep. It shown that conditions...
Abstract Sedimentary rocks are inherently anisotropic and prone to strain localization. While the influence of rock anisotropy on brittle/dilative regime has been studied extensively, its ductile/compactive is much less explored. This paper discusses behavior a high‐porosity carbonate from central Europe (the Maastricht Tuffeau). A set triaxial tests with concurrent x‐ray tomography performed at different confining pressures. The characteristics this have investigated by testing samples...
Summary This paper discusses the formulation and numerical performance of a fully implicit algorithm used to integrate rate‐dependent model defined within breakage mechanics framework. For this purpose, Generalized Backward Euler (GBE) has been implemented according two different linearization strategies: The former is derived by direct constitutive equations, while latter introduces rate effects through consistency parameter. accuracy efficiency GBE have investigated (1) performing material...
Fluid-infiltrated soils are vulnerable to wetting and often exhibit delayed deformation characterised by acceleration stages. In this paper, mathematical tools developed diagnose failure in unsaturated materials subjected saturation. For purpose, stability criteria for saturated viscous extended account hydraulic state variables (e.g. suction water content), which may provoke an unexpected increase of the creep rate. A simple one-dimensional constitutive law is used test proposed theory...
Recent interpretations of wetting-induced compaction revealed that water sensitivity can cause a loss controllability in samples subjected to fluid injection. This paper elaborates these findings by focusing on fabric anisotropy, i.e., feature unsaturated clays not encompassed previous studies. For this purpose, hydromechanical elastoplastic model with rotational hardening is developed capture effects. The performance has been validated under both saturated and conditions reference...