Publications associées à Fragilité

Unraveling Brittle-Fracture Statistics from Intermittent Patterns Formed During Femtosecond Laser Exposure

Yves Bellouard, Max-Olivier Hongler, Christos Edouardos Athanasiou

Femtosecond-laser-written patterns at the surface of brittle materials may show at random times spontaneous alternations from regular to disordered structures and vice versa. Here, we show that these random transitions carry relevant statistical informatio ...

2017

Atomistic study of hydrogen embrittlement of grain boundaries in nickel: I. Fracture

William Curtin, Ali Tehranchi

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 ...

Elsevier2017

Shear loaded friction-welded crosswise arranged timber boards

Yves Weinand, Till Vallée, Benjamin Hahn

Friction welding of wood is a bonding technology that can be used for joining timber elements, and in which the adhesive is formed from thermally modified cell wall material within the substrate during the welding process. In this paper, this principle is ...

2017

Effects of partial crystallization in Pt-Si-B-based bulk metallic glasses on glass transition and crystallization of the remaining amorphous matrix

Ludger Weber, Hamed Kazemi, Cyrill Werner Cattin, Gilles Hodel

The influence of partial crystallization on the evolution of the characteristic temperatures, i.e. of the glass transition and the onset of crystallization, the density, and the mechanical properties of the bulk metallic glass Pt(49.95)Si(6)AB(24)Ge(3)Cu(1 ...

Elsevier2017

Crack tip blunting and cleavage under dynamic conditions

William Curtin, Varun Parameswaran Rajan

In structural materials with both brittle and ductile phases, cracks often initiate within the brittle phase and propagate dynamically towards the ductile phase. The macroscale, quasistatic toughness of the material thus depends on the outcome of this micr ...

Elsevier2016

Dislocation Motion and the Microphysics of Flash Heating and Weakening of Faults during Earthquakes

Marie Estelle Solange Violay, Andrea Cavallo

Earthquakes are the result of slip along faults and are due to the decrease of rock frictional strength (dynamic weakening) with increasing slip and slip rate. Friction experiments simulating the abrupt accelerations (>>10 m/s(2)), slip rates (similar to 1 ...

Mdpi Ag2016

2D meso-scale modeling of masonry elements using cohesive elements

Jean-François Molinari, Katrin Beyer, Nicolas Richart, Shenghan Zhang, Seyedeh Mohadeseh Taheri Mousavi

Many stone masonry structures that were constructed in the past centuries are now counted towards the cultural heritage. The low strength and brittle behavior make these heterogeneous structures very vulnerable to various natural or man-made disasters such ...

2016

Variational phase field model for dynamic brittle fracture

Jean-François Molinari, Jérémy Bleyer, Clément Pierre Mathieu Roux-Langlois

Simulating crack nucleation and propagation remains a challenging problematic because of the complexity of crack patterns observed in fracture mechanics experiments. Whereas some numerical methods aim at explicitly tracking the crack front evolution, an in ...

2016

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Fragilité

Unraveling Brittle-Fracture Statistics from Intermittent Patterns Formed During Femtosecond Laser Exposure

Atomistic study of hydrogen embrittlement of grain boundaries in nickel: I. Fracture

Shear loaded friction-welded crosswise arranged timber boards

Effects of partial crystallization in Pt-Si-B-based bulk metallic glasses on glass transition and crystallization of the remaining amorphous matrix

Dilatancy around the brittle to ductile transition in continental and oceanic crusts: Implication for high enthalpy geothermal reservoir

Crack tip blunting and cleavage under dynamic conditions

Shear Response under Reversed Cyclic Loading

Dislocation Motion and the Microphysics of Flash Heating and Weakening of Faults during Earthquakes

2D meso-scale modeling of masonry elements using cohesive elements

Variational phase field model for dynamic brittle fracture

Graph Chatbot

Chattez avec Graph Search

Unraveling Brittle-Fracture Statistics from Intermittent Patterns Formed During Femtosecond Laser Exposure

Atomistic study of hydrogen embrittlement of grain boundaries in nickel: I. Fracture

Crack tip blunting and cleavage under dynamic conditions

Effects of partial crystallization in Pt-Si-B-based bulk metallic glasses on glass transition and crystallization of the remaining amorphous matrix

Dislocation Motion and the Microphysics of Flash Heating and Weakening of Faults during Earthquakes

Shear Response under Reversed Cyclic Loading

Dilatancy around the brittle to ductile transition in continental and oceanic crusts: Implication for high enthalpy geothermal reservoir

2D meso-scale modeling of masonry elements using cohesive elements

Shear loaded friction-welded crosswise arranged timber boards

Variational phase field model for dynamic brittle fracture