Publication
Crack front deformation during dynamic heterogeneous fracture
Related publications (32)
High-Temperature Water Effects on the Fracture Behaviour of Low-Alloy Reactor Pressure Vessel Steels
The structural integrity of the reactor pressure vessel (RPV) of light water reactors (LWR) is of utmost importance regarding operation safety and lifetime. High-temperature water (HTW) and hydrogen absorbed from environment, in synergy with irradiation em ...
EPFL2019Crack Nucleation in the Adhesive Wear of an Elastic-Plastic Half-Space
Jean-François Molinari, Guillaume Anciaux, Lucas Henri Galilée Frérot
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 ...
2019Investigations and numerical modeling of mechanical properties of tempered martensitic steel Eurofer97 at various loading rates, temperatures and after spallation irradiation
The reduced activation tempered martensitic steel Eurofer97 is a reference steel for a structural applica-tions in fusion reactors. The first-wall and blanket materials will be subjected to high thermal and neutron fluxes and will experience very complex, ...
EPFL2018Atomistic study of hydrogen embrittlement of grain boundaries in nickel: I. Fracture
Hydrogen ingress into a metal is a persistent source of embrittlement. Fracture surfaces are often intergranular, suggesting favorable cleave crack growth along grain boundaries (GBs) as one driver for embrittlement. Here, atomistic simulations are used to ...
Elsevier2017Fracture toughness testing of nanocrystalline alumina and fused quartz using chevron-notched microbeams
Andreas Mortensen, Marco Cantoni, Goran Zagar, Martin Guillermo Mueller, Václav Pejchal
We show that chevron-notched samples offer an attractive approach to the measurement of fracture toughness in micron-scale samples of brittle materials and use the method to characterize quartz and nanocrystalline alumina. Focused ion beam milling is used ...
Elsevier2015Simultaneous initiation and growth of multiple radial hydraulic fractures from a horizontal wellbore
Brice Tanguy Alphonse Lecampion
Multi-stage fracturing is the current preferred method of completion of horizontal wells in unconventional hydrocarbon reservoirs. Its core component consists in simultaneously initiating and propagating an array of hydraulic fractures. We develop a numeri ...
Pergamon-Elsevier Science Ltd2015Failure of Ceramic Composites in Non-Uniform Stress Fields
Continuous-fiber ceramic matrix composites (CMCs) are of interest as hot-section components in gas turbine engines due to their refractoriness and low density relative to metallic alloys. In service, CMCs will be subjected to spatially inhomogeneous temper ...
University of California Santa Barbara2014Effects of non-uniform strains on tensile fracture of fiber-reinforced ceramic composites
Effects of non-uniform strains on tensile fracture of fiber-reinforced ceramic–matrix composites have not been satisfactorily explained by existing mechanics-based models. In this paper, we use an exact model of fiber fragmentation under global load sharin ...
Elsevier2012Hygrothermal Ageing and Damage Characterization in Epoxies and in Epoxy-Glass Interfaces
Nowadays, composite materials are increasingly used in high technology fields such as aerospace and automotive because of the combination of excellent mechanical performance and lightweight. For these characteristics, classical metal alloys are progressive ...
EPFL2011Multiaxial Yield and Fracture of Replicated Microcellular Aluminium
This work addresses the behaviour of replicated microcellular pure aluminium under multiaxial stress states and in the presence of stress and strain localization sites. Processing of the foam was conducted in-house, using the replication process. The main ...
EPFL2010