Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Mahajan, Shivam"'
Autor:
Mahajan, Shivam, Han, Darryl Seow Yang, Jiang, Cunyuan, Baggioli, Matteo, Ciamarra, Massimo Pica
The vibrational density of states is key to understanding the mechanical, thermal, and transport properties of materials. In amorphous solids, this density shows an excess of vibrational modes compared to the Debye model, known as the boson peak, who
Externí odkaz:
http://arxiv.org/abs/2409.13169
Publikováno v:
SciPost Phys. 15, 069 (2023)
We introduce an algorithm that constructs disordered mass-spring networks whose elastic properties mimic that of glasses by tuning the fluctuations of the local elastic properties, keeping fixed connectivity and controlling the prestress. In two dime
Externí odkaz:
http://arxiv.org/abs/2211.01137
The vibrational density of states $D(\omega)$ of solids controls their thermal and transport properties. In crystals, the low-frequency modes are extended phonons distributed in frequency according to Debye's law, $D(\omega) \propto \omega^2$. In amo
Externí odkaz:
http://arxiv.org/abs/2106.04868
We investigate the emergence of isotropic linear elasticity in amorphous and polycrystalline solids, via extensive numerical simulations. We show that the elastic properties are correlated over a finite length scale $\xi_E$, so that the central limit
Externí odkaz:
http://arxiv.org/abs/2104.12383
Spectral gaps in the vibrational modes of disordered solids are key design elements in the synthesis and control of phononic metamaterials that exhibit a plethora of novel elastic and mechanical properties. However, reliably producing these gaps ofte
Externí odkaz:
http://arxiv.org/abs/2103.07606
Autor:
Mahajan, Shivam, Tennenbaum, Michael, Pathak, Sudhir N., Baxter, Devontae, Fan, Xiaochen, Padilla, Pablo, Anderson, Caleb, Fernandez-Nieves, Alberto, Ciamarra, Massimo Pica
Publikováno v:
Phys. Rev. Lett. 124, 128002, 2020
When grains are added to a cylinder, the weight at the bottom is smaller than the total weight of the column, which is partially supported by the lateral walls through wall/grain frictional forces. This is known as the Janssen effect. Via a combined
Externí odkaz:
http://arxiv.org/abs/2005.14404
Akademický článek
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Akademický článek
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Publikováno v:
Physical Review E, 103(2):022606. American Physical Society
Many structural glasses feature static and dynamic mechanical properties that can depend strongly on glass formation history. The degree of universality of this history-dependence, and what it is possibly affected by, are largely unexplored. Here we
Publikováno v:
Physical Review E, 103(2):022605. American Physical Society
Recent literature indicates that attractive interactions between particles of a dense liquid play a secondary role in determining its bulk mechanical properties. Here we show that, in contrast with their apparent unimportance to the bulk mechanics of