Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Salman, Og̃uz Umut"'
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 analog of many other reconstructive phase transitions. To justify our
Externí odkaz:
http://arxiv.org/abs/2409.04066
Autor:
Salman, Oguz Umut, Baggio, Roberta, Bacroix, Brigitte, Zanzotto, Giovanni, Gorbushin, Nikolai, Truskinovsky, Lev
Publikováno v:
Comptes Rendus. Physique, Vol 22, Iss S3, Pp 201-248 (2021)
We study the mechanical response of a dislocation-free 2D crystal under homogenous shear using a new mesoscopic approach to crystal plasticity, a Landau-type theory, accounting for the global invariance of the energy in the space of strain tensors wh
Externí odkaz:
https://doaj.org/article/da9dff75622e4633a9551a9cb53c6f6b
Compression experiments are widely used to study the mechanical properties of materials at micro- and nanoscale. However, the conventional engineering stress measurement method used in these experiments neglects to account for the alterations in the
Externí odkaz:
http://arxiv.org/abs/2310.06476
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 intermittent plastic response was found to be generic for micro- and nano-siz
Externí odkaz:
http://arxiv.org/abs/2012.12780
Autor:
Salman, Oguz Umut, Ionescu, Ioan R.
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. Recent experiments revealed that the mechanical response of a crystal i
Externí odkaz:
http://arxiv.org/abs/2005.04510
Publikováno v:
Journal of the Mechanics and Physics of Solids 115 (2018) 167-194
The microstructure evolution due to thermomechanical treatment of metals can largely be described by viscoplastic deformation, nucleation and grain growth. These processes take place over different length and time scales which present significant cha
Externí odkaz:
http://arxiv.org/abs/1805.11825
Autor:
Zhanga, Peng, Salman, Oguz Umut, Zhang, Jin-Yu, Liu, Gang, Weiss, Jérôme, Truskinovsky, Lev, Sun, Jun
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 experiments and simulations show that sub-micron face-centered-cubic (FC
Externí odkaz:
http://arxiv.org/abs/1610.02897
Autor:
Salman, Og̃uz Umut, Ionescu, Ioan R.
Publikováno v:
In Mechanics Research Communications June 2021 114
Autor:
Taloni, Alessandro, Kardash, Elena, Salman, Oguz Umut, Truskinovsky, Lev, Zapperi, Stefano, La Porta, Caterina A. M.
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. Here we report experiments demonstrating that water transport in and out
Externí odkaz:
http://arxiv.org/abs/1505.03397
Shape memory alloys inherit their macroscopic properties from their mesoscale microstructure originated from the martensitic phase transformation. In a cubic to orthorhombic transition, a single variant of marten- site can have a compatible (exact) i
Externí odkaz:
http://arxiv.org/abs/1204.5208