Concept

Mécanique des solides déformables

Publications associées (395)

Propagation of a Radial Fluid-driven Fracture in Nonlinear Solid --around the tip of a fluid-driven fracture: process zone vs deviated fluid flow

Brice Tanguy Alphonse Lecampion, Dong Liu

Deviations from conventional hydraulic fracturing simulators’ predictions are sometimes observed in the field and laboratory. This questions the basic assumptions adopted in linear hydraulic fracture mechanics (LHFM): a linear elastic solid and a simplifie ...

2018

Supershear bursts in the propagation of a tensile crack in linear elastic material

Jean-François Molinari, Fabian Barras, René Carpaij

Since the early years of the linear elastic theory of fracture [linear elastic fracture mechanics (LEFM)], scientists have sought to understand and predict how fast cracks grow in a material or slip fronts propagate along faults. While shear cracks can tra ...

2018

Size effect in shear and punching shear failures of concrete members without transverse reinforcement: Differences between statically determinate members and redundant structures

Aurelio Muttoni, Miguel Fernández Ruiz

Large efforts have been devoted in the past to understanding size effect in shear failures of members without transverse reinforcement. Experimental works have demonstrated that increasing the size reduces the nominal shear strength provided that the failu ...

2018

First-Principles Statistical Mechanics of Multicomponent Crystals

Anirudh Raju Natarajan

The importance of configurational, vibrational, and electronic excitations in crystalline solids of technological interest makes a rigorous treatment of thermal excitations an essential ingredient in first-principles models of materials behavior. This cont ...

Annual Reviews2018

Continuum versus discrete approach in modeling of wear processes

Enrico Milanese, Lucas Henri Galilée Frérot

Wear of materials is a very complex phenomenon due to its tight correlation with all the other phenomena that take place at the interface of two bodies interacting with one another, like friction, contact and lubrication. When two opposing surfaces slide o ...

2018

Early Stages of Precipitation In Aluminum Alloys by First-Principles and Machine-Learning Atomistic Simulations

Daniele Giofré

Age hardening induced by the formation of (semi)-coherent precipitate phases is crucial for the processing and final properties of the widely used Al-6000 alloys despite the early stages of precipitation are still far from being fully understood. This cruc ...

EPFL2018

Analysis and design of a reinforced concrete deep beam with high thickness

The objective of this work concerns the analysis and design of an existing deep beam with a high thickness in reinforced concrete, according to the standards defined in the Eurocode. The structure is inserted in a hydroelectric plant in the Alentejo region ...

2018

When dynamic cracks meet disorder: A journey along the fracture process zone

Fabian Barras

The onset of earthquakes along crustal faults, the triggering of slab avalanches or the break of a wine glass are all serious problems driven by the propagation of a dynamic rupture front. Our physical understanding of this ubiquitous phenomenon is however ...

EPFL2018

First Steps Towards The Development Of A 3D Nuclear Fuel Behavior Solver With Openfoam

Andreas Pautz, Carlo Fiorina, Alessandro Scolaro

A new 3D fuel behavior solver is currently under collaborative development at the Laboratory for Reactor Physics and Systems Behaviour of the Ecole Polytechnique Federale de Lausanne and at the Paul Scherrer Institut. The long term objective is to enable a ...

AMER SOC MECHANICAL ENGINEERS2018

Form finding in elastic gridshells

Pedro Miguel Nunes Pereira de Almeida Reis, Changyeob Baek

Elastic gridshells comprise an initially planar network of elastic rods that are actuated into a shell-like structure by loading their extremities. The resulting actuated form derives from the elastic buckling of the rods subjected to inextensibility. We s ...

2018

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