Predicting the constitutive behavior of semi-solids via a direct finite element simulation: application to AA5182

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This study analyses the response of compacted bentonites upon hydration based on a coupled hydro-mechanical elasto-plastic framework. As an alternative to multi-porosity interpretation, the framework was selected based on the experimental evidence of adsor ...

We study the propagation of a plane‐strain hydraulic fracture driven by a shear thinning fluid following a Carreau rheology. We restrict to the impermeable medium case and quantify in details the impact on fracture growth of the shear‐thinning properties o ...

Numerical models of structural components that deteriorate primarily due to geometric instabilities under multiaxis cyclic loading are sensitive to both the assumed geometric imperfections and the nonlinear material model assumptions. Therefore, the accura ...

In this work, we present the development of a 3D lattice-type model at microscale based upon the Voronoi-cell representation of material microstructure. This model can capture the coupling between mechanic and electric fields with non-linear constitutive b ...

The complexity of the mechanics of active clays and, more generally, of geomaterials with clay minerals, under saturated and unsaturated conditions, still provides relevant scientific challenges today. Equally relevant challenges are the understanding of t ...

In concrete structures, opened cracks contribute significantly to the transfer of shear and normal stresses through the contact forces occurring between fractured surfaces. Such contact forces are due to protruding asperities, engaged by interlocking and f ...

This work presents a data-driven Reduced-Order Model (ROM) for parametric convective heat transfer problems in porous media. The intrusive Proper Orthogonal Decomposition aided Reduced-Basis (POD-RB) technique is employed to reduce the porous medium formul ...

The propagation of fluid driven fractures is used in a number of industrial applications (well stimulation of unconventional reservoirs, development of deep geothermal systems) but also occurs naturally (magmatic dyke intrusion). While the mechanics of hyd ...

Under common processing conditions, both dilute and complex concentrated alloys are often realized as random alloys, with no correlation in the occupancy of lattice sites by the constituent atom types. The current thesis primary addresses two problems in r ...

The detachment of material in an adhesive wear process is driven by a fracture mechanism which is controlled by a critical length-scale. Previous efforts in multi-asperity wear modeling have applied this microscopic process to rough elastic contact. Howeve ...

The configuration of a hydraulic fracture (HF) propagating perpendicular to the isotropy plane of a transversely isotropic (TI) material is encountered in most sedimentary basins. We account for both elastic and fracture toughness anisotropy, and investiga ...

Predicting the constitutive behavior of semi-solids via a direct finite element simulation: application to AA5182

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Coupled hydro-mechanical analysis of compacted bentonite behaviour during hydration

A plane‐strain hydraulic fracture driven by a shear‐thinning Carreau fluid

Constitutive Modeling of Structural Steels: Nonlinear Isotropic/Kinematic Hardening Material Model and Its Calibration

Multi-scale model for coupled piezoelectric-inelastic behavior

Effective stress for unsaturated active clays and in-situ effective stress estimation methodology

Multi-scale modeling of aggregate interlock phenomena in concrete

Data-Driven Reduced-Order Modeling of Convective Heat Transfer in Porous Media

Propagation of fluid driven fractures in transversely isotropic material

Concurrent multiscale modeling and theory of solute-strengthening for dilute and complex concentrated alloys

Crack Nucleation in the Adhesive Wear of an Elastic-Plastic Half-Space

Planar hydraulic fracture growth perpendicular to the isotropy plane in a transversely isotropic material

Microstructural modelling of autogenous shrinkage in Portland cement paste at early age