6 papers
Hydrogen segregation around a straight screw dislocation in bcc iron
Margot Lucas, Marie Landeiro Dos Reis, Sylvain Queyreau +1
The interaction between hydrogen and screw dislocations in bcc iron is central to understanding hydrogen embrittlement. A major challenge lies in the high-dimensional parametric la…
Physical scaling laws in dislocation microstructures and avalanches from dislocation dynamics simulations
Missipsa Aissaoui, Charlie Kahloun, Oguz Umut Salman +1
Avalanche-like plastic bursts in crystalline materials follow power law statistics, but the scaling exponents and cutoff parameters vary widely in the literature ( ranging from…
On the saturation stress of deformed metals
Sylvain Queyreau
Crystalline materials exhibit an hysteresis behaviour when deformed cyclically. The origins of this tension-compression asymmetry have been fully understood only recently as being…
A Multiscale Investigation of the Physical Origins of Tension--Compression Asymmetry in Crystals and their Implications for Cyclic Behavior
Sylvain Queyreau, Benoit Devincre
Most of crystalline materials develop an hysteresis on their deformation curve when a mechanical loading is applied in alternating directions. This effect, also known as the Bausch…
On the Origins of Tension--Compression Asymmetry in Crystals and Implications for Cyclic Behavior
Sylvain Queyreau, Benoit Devincre
Most of crystalline materials exhibit a hysteresis on their deformation curve when mechanically loaded in alternating directions. This Bauschinger effect is the signature of mechan…
Dislocation Based Mechanics: the various contributions of Dislocation Dynamics simulations
Sylvain Queyreau
Plastic deformation In crystalline materials is controlled by the motion and interactions of dislocations [AND 17]. Discrete Dislocation Dynamics (DDD) simulations have now existed…