165 citations · 426 across the 16 of their papers we have counts for
6 papers · 1 filter
Atomistic Simulations of Magnetic Amorphous Solids: Magnetostriction, Barkhausen noise and novel singularities
Ratul Dasgupta, H. George E. Hentschel, Itamar Procaccia +1
We present results of atomistic simulations of a new model of a magnetic amorphous solid subjected to external mechanical strains and magnetic fields. The model employed offers new…
Shear localization in 3-Dimensional Amorphous Solids
Ratul Dasgupta, Oleg Gendelman, Pankaj Mishra +2
In this paper we extend the recent theory of shear-localization in 2-dimensional amorphous solids to 3-D. In 2-D the fundamental instability of shear-localization is related to the…
Derivation of the Johnson-Samwer Temperature Dependence of the Yield Strain in Metallic Glasses
Ratul Dasgupta, Ashwin Joy, H. G. E. Hentschel +1
Metallic Glasses are prone to fail mechanically via a shear-banding instability. In a remarkable paper Johnson and Samwer demonstrated that this failure enjoys a high degree of uni…
The Yield-Strain in Shear Banding Amorphous Solids
Ratul Dasgupta, H. George E. Hentschel, Itamar Procaccia
In recent research it was found that the fundamental shear-localizing instability of amorphous solids under external strain, which eventually results in a shear band and failure, c…
Microscopic Mechanism of Shear Bands in Amorphous Solids
Ratul Dasgupta, H. George E. Hentschel, Itamar Procaccia
The fundamental instability responsible for the shear localization which results in shear bands in amorphous solids remains unknown despite enormous amount of research, both experi…
Universality of the Plastic Instability in Strained Amorphous Solids
Ratul Dasgupta, Smarajit Karmakar, Itamar Procaccia
By comparing the response to external strains in metallic glasses and in Lenard-Jones glasses we find a quantitative universality of the fundamental plastic instabilities in the at…