90 citations · 374 across the 16 of their papers we have counts for
18 papers
Large plastic deformation of voids in crystals
Jalal Smiri, Joseph Paux, Oguz Umut Salman +1
The mechanisms of void growth and coalescence are key contributors to the ductile failure of crystalline materials. At the grain scale, single crystal plastic anisotropy induces la…
Prediction of ideal orientations in velocity gradient-driven processes for large plastic deformations of crystals
Jalal Smiri, Oguz Umut Salman, Ioan R. Ionescu
We focus on the crystal lattice ideal orientations, also referred to as preferred or attractor orientations, in crystalline materials, and how they can be used to predict the final…
Inertia-induced power-law scaling in martensites
Oğuz Umut Salman, Alphonse Finel, Lev Truskinovsky
Martensites subjected to quasistatic deformation are known to exhibit power law distributed acoustic emission in a broad range of scales, however, the origin of the observed scalin…
A time-discontinuous elasto-plasticity formalism to simulate instantaneous plastic flow bursts
Mathias Lamari, Pierre Kerfriden, Oguz Umut Salman +3
Plastic flow is conventionally treated as continuous in finite element (FE) codes, whether in isotropic, anisotropic plasticity, or crystal plasticity. This approach, derived from…
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…
Slip-dominated structural transitions
Kanka Ghosh, Oguz Umut Salman, Sylvain Queyreau +1
We use molecular dynamics to show that plastic slip is a crucial component of the transformation mechanism of a square-to-triangular structural transition. The latter is a stylized…
Accounting for localized deformation: a simple computation of true stress in micropillar compression experiments
Jalal Smiri, Oguz Umut Salman, Matteo Ghidelli +1
Compression experiments are widely used to study the mechanical properties of materials at micro- and nanoscale. However, the conventional engineering stress measurement method use…
Fluctuations in crystalline plasticity
Jérôme Weiss, Peng Zhang, Oguz Umut Salman +2
Recently acoustic signature of dislocation avalanches in HCP materials was found to be long tailed in size and energy, suggesting critical dynamics. Even more recently, the intermi…
Atomistic simulation of martensite microstructural evolution during temperature driven transition in pure titanium
C. Baruffi, A. Finel, Y. Le Bouar +2
Titanium and its alloys undergo temperature-driven martensitic phase transformation leading to the development of complex microstructures at mesoscale. Optimizing the mechanical pr…
Tempering the mechanical response of FCC micro-pillars: an Eulerian plasticity approach
Oguz Umut Salman, Ioan R. Ionescu
The mechanical response of almost pure single-crystal micro-pillars under compression exhibits a highly localized behavior that can endanger the structural stability of a sample. R…
Landau theory of bending-to-stretching transition
O. U. Salman, G. Vitale, L. Truskinovsky
Transition from bending-dominated to stretching-dominated elastic response in semi-flexible fibrous networks plays an important role in the mechanical behavior of cells and tissues…
A Cosserat crystal plasticity and phase field theory for grain boundary migration
Anna Ask, Samuel Forest, Benoit Appolaire +2
The microstructure evolution due to thermomechanical treatment of metals can largely be described by viscoplastic deformation, nucleation and grain growth. These processes take pla…
Taming intermittent plasticity at small scales
Peng Zhanga, Oguz Umut Salman, Jin-Yu Zhang +4
The extreme miniaturization in modern technology calls for deeper insights into the non-conventional, fluctuation dominated mechanics of materials at micro- to nano-scales. Both ex…
Volume changes during active shape fluctuations in cells
Alessandro Taloni, Elena Kardash, Oguz Umut Salman +3
Cells modify their volume in response to changes in osmotic pressure but it is usually assumed that other active shape variations do not involve significant volume fluctuations. He…
The role of phase compatibility in martensite
Oguz Umut Salman, Alphonse Finel, Remi Delville +1
Shape memory alloys inherit their macroscopic properties from their mesoscale microstructure originated from the martensitic phase transformation. In a cubic to orthorhombic transi…
On the critical nature of plastic flow: one and two dimensional models
Oguz Umut Salman, Lev Truskinovsky
Steady state plastic flows have been compared to developed turbulence because the two phenomena share the inherent complexity of particle trajectories, the scale free spatial patte…
A minimal integer automaton behind crystal plasticity
Oguz Umut Salman, Lev Truskinovsky
Power law fluctuations and scale free spatial patterns are known to characterize steady state plastic flow in crystalline materials. In this Letter we study the emergence of correl…
Origin of stabilization of macrotwin boundaries in martensites
O. U. Salman, B. K. Muite, A. Finel
The origin of stabilization of complex microstructures along macrotwin boundaries in martensites is explained by comparing two models based on Ginzburg-Landau theory. The first mod…