Publications - BITS Pilani

Prof. Subhadeep Roy

Assistant Professor,
Department of Physics

2025

Non-monotonic growth of MoS2 quantum dots observed through fractal analysis: role of precursor concentration on the overall growth dynamics

Geetika Sahu, Chanchal Chakraborty, Subhadeep Roy and Souri Banerjee, Physica Scripta, Volume 100, Number 5 (2025).

Dynamics of active paths during two-phase flow through the capillary fiber bundle model

Anjali Vajigi, and Subhadeep Roy, Phys. Rev. E 111, 065102 (2025).

Experimental and Numerical Optimization of MechanicalProperties of PVA Nanocomposites With MolybdenumDisulfide Quantum Dots

Polymers for Advanced Technologies, Geetika Sahu, Alle Pawan Kumar Reddy, R. K. Viswakannan, Aritra Chatterjee, Subhadeep Roy, Souri Banerjee, Volume 37, Issue 1, e70494 (2026).

2024

Dependence of reaction time in hydrothermal synthesis of MoS2 quantum dots: An investigation using optical tools and fractal analysis

Geetika Sahu, Chanchal Chakraborty, Subhadeep Roy, and Souri Banerjee, Journal of Crystal Growth 627, 127487 (2024).

Inequality of creep avalanches can predict imminent breakdown

Tarun Ram Kanuri, Subhadeep Roy, and Soumyajyoti Biswas, Physica A, Volume 654, 130148 (2024).

Critical crack-length during fracture

Viswakannan R. K., and Subhadeep Roy, Phys. Rev. E 110, 024134 (2024).

Immiscible Two‑Phase Flow in Porous Media: Effective Rheology in the Continuum Limit

Subhadeep Roy, Santanu Sinha, Alex Hansen, Transport in Porous Media 151, 1295–1311 (2024).

Disorder-induced non-linear growth of fingers in immiscible two-phase flow in porous media

Santanu Sinha, Yves Méheust, Hursanay Fyhn, Subhadeep Roy, Alex Hansen, Physics of Fluids 36, 033309 (2024)

Record statistics based prediction of fracture in the random spring network model

Subrat Senapati1, Subhadeep Roy, Anuradha Banerjee, and R. Rajesh, Phys. Rev. E 110, 035004 (2024).

2023

Record statistics of emitted energies − prediction of an upcoming failure

Subhadeep Roy, Physics A 627, 129129 (2023).

2022

The Co-Moving Velocity in Immiscible Two-Phase Flow in Porous Media

Subhadeep Roy, Håkon Pedersen, Santanu Sinha, and Alex Hansen, Transport in Porous Media 143, 69–102 (2022).

Modeling crack propagation in heterogeneous materials: Griffith’s law, intrinsic crack resistance, and avalanches

Subhadeep Roy, Takahiro Hatano, and Purusattam Ray, Phys. Rev. E 105, 055003 (2022).

Model for creep failure with healing

Subhadeep Roy, and Takahiro Hatano, Phys. Rev. Res. 4, 023110 (2022).

Opinion dynamics: Public and private

Subhadeep Roy, Soumyajyoti Biswas, Phil. Trans. Royal Soc. A. 380 (2224), 20210169 (2022).

Correlation between avalanches and emitted energies during fracture with variable stress release range

Narendra K. Bodaballa, Soumyajyoti Biswas, Subhadeep Roy, Front. Phys. 10, 768853 (2022).

2021

From nucleation to percolation: the effect of system size when disorder strength and stress localization compete

Subhadeep Roy, Front. Phys. 9, 752086 (2021).

Rheology of immiscible two-phase flow in mixed wet porous media: Dynamic pore network model and capillary fiber bundle model results

Hursanay Fyhn, Santanu Sinha, Subhadeep Roy, and Alex Hansen, Transport in Porous Media 139, 491–512 (2021).

Role of pore-size distribution on effective rheology of two-phase flow in porous media

Subhadeep Roy, Santanu Sinha, and Alex Hansen, Front. Water 3, 709833 (2021).

Size distribution of emitted energies in local load sharing fiber bundles

Subhadeep Roy, Soumyajyoti Biswas, Front. Phys. 9, 643602(2021).

Crack Localization and the Interplay between Stress Enhancement and Thermal Noise

Santanu Sinha, Subhadeep Roy, and Alex Hansen, Physica A 569, 125782 (2021).

2020

Phase transitions and correlations in fracture processes where disorder and stress compete

Santanu Sinha, Subhadeep Roy, and Alex Hansen, Phys. Rev. Research 2, 043108 (2020).

Creep failure in a threshold activated dynamics: Role of temperature during a sub-critical loading

Subhadeep Roy, and Takahiro Hatano, Phys. Rev. Research 2, 023104 (2020).

Flow-Area Relations in Immiscible Two-Phase Flow in Porous Media

Subhadeep Roy, Santanu Sinha, and Alex Hansen, Front. Phys. 8, 4 (2020).

2019

Failure time in heterogeneous systems

Subhadeep Roy, Soumyajyoti Biswas, and Purusattam Ray, Phys. Rev. Research 1, 033047 (2019).

Effective Rheology of Two-Phase Flow in a Capillary Fiber Bundle Model

Subhadeep Roy, Alex Hansen, and Santanu Sinha, Front. Phys. 7, 92 (2019).

2018

Creep-like behavior in athermal threshold dynamics: Effects of disorder and stress

Subhadeep Roy, and Takahiro Hatano, Phys. Rev. E 97, 062149 (2018).

Stability in a fiber bundle model: Existence of strong links and the effect of disorder

Subhadeep Roy, Phys. Rev. E 97, 052130 (2018).

Fiber bundle model under heterogeneous loading

Subhadeep Roy, and Sanchari Goswami, J. Stat. Phys. Vol 170, Issue 6, pp 1197-1214 (2018)

2017

Modes of failures in disordered solids

Subhadeep Roy, Soumyajyoti Biswas, and Purusattam Ray, Phys. Rev. E 96, 063003 (2017).

Predictability and strength of a heterogeneous system: The role of system size and disorder

Subhadeep Roy, Phys. Rev. E 96, 042142 (2017).

2015

Critical behavior in fiber bundle model: A study on brittle to quasi-brittle transition

Subhadeep Roy, and Purusattam Ray, Europhysics Letters, Volume 112, Number 2, pp 26004 (2015).

Nucleation versus percolation: Scaling criterion for failure in disordered solids

Soumyajyoti Biswas, Subhadeep Roy, and Purusattam Ray, Phys. Rev. E 91, 050105(R) (2015).

Conference Proceedings

Fracturing tests on reservoir rocks: Analysis of AE events and radial strain evolution

S. Pradhan, A.M. Stroisz, E. Fjr, J. Stenebrten, H. K. Lund, E. F. Snsteb, and S. Roy, 48th US Rock Mechanics / Geomechanics Symposium.

Study of ductile-brittle transition in fiber bundle model under mean-field approximation

Subhadeep Roy, and Purusattam Ray, 13th International Conference on Fracture 2013, ICF (2013).

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