High-resolution simulations of cylindrical void collapse in energetic materials: Effect of primary and secondary collapse on initiation thresholds NK Rai, MJ Schmidt, HS Udaykumar Physical Review Fluids 2 (4), 043202, 2017 | 85 | 2017 |
Mesoscale simulation of reactive pressed energetic materials under shock loading NK Rai, HS Udaykumar Journal of Applied Physics 118 (24), 2015 | 78 | 2015 |
Three-dimensional simulations of void collapse in energetic materials NK Rai, HS Udaykumar Physical Review Fluids 3 (3), 033201, 2018 | 73 | 2018 |
Void collapse generated meso-scale energy localization in shocked energetic materials: Non-dimensional parameters, regimes, and criticality of hotspots NK Rai, HS Udaykumar Physics of Fluids 31 (1), 2019 | 72 | 2019 |
Collapse of elongated voids in porous energetic materials: Effects of void orientation and aspect ratio on initiation NK Rai, MJ Schmidt, HS Udaykumar Physical Review Fluids 2 (4), 043201, 2017 | 66 | 2017 |
Multi-scale shock-to-detonation simulation of pressed energetic material: A meso-informed ignition and growth model O Sen, NK Rai, AS Diggs, DB Hardin, HS Udaykumar Journal of Applied Physics 124 (8), 2018 | 62 | 2018 |
Modeling mesoscale energy localization in shocked HMX, part I: machine-learned surrogate models for the effects of loading and void sizes A Nassar, NK Rai, O Sen, HS Udaykumar Shock Waves 29, 537-558, 2019 | 46 | 2019 |
Modeling mesoscale energy localization in shocked HMX, Part II: training machine-learned surrogate models for void shape and void–void interaction effects S Roy, NK Rai, O Sen, DB Hardin, AS Diggs, HS Udaykumar Shock Waves 30 (4), 349-371, 2020 | 30 | 2020 |
Evaluation of reaction kinetics models for meso-scale simulations of hotspot initiation and growth in HMX NK Rai, SP Koundinyan, O Sen, IV Schweigert, BF Henson, ... Combustion and Flame 219, 225-241, 2020 | 26 | 2020 |
Treatment of contact separation in Eulerian high‐speed multimaterial dynamic simulations NK Rai, A Kapahi, HS Udaykumar International Journal for Numerical Methods in Engineering 100 (11), 793-813, 2014 | 26 | 2014 |
Mechanics of shock induced pore collapse in poly (methyl methacrylate)(PMMA): Comparison of simulations and experiments NK Rai, EM Escauriza, DE Eakins, HS Udaykumar Journal of the Mechanics and Physics of Solids 143, 104075, 2020 | 25 | 2020 |
Structure–property–performance linkages for heterogenous energetic materials through multi-scale modeling S Roy, O Sen, NK Rai, M Moon, E Welle, C Molek, KK Choi, ... Multiscale and Multidisciplinary Modeling, Experiments and Design 3, 265-293, 2020 | 21 | 2020 |
Macro-scale sensitivity through meso-scale hotspot dynamics in porous energetic materials: Comparing the shock response of 1, 3, 5-triamino-2, 4, 6-trinitrobenzene (TATB) and 1 … NK Rai, O Sen, HS Udaykumar Journal of Applied Physics 128 (8), 2020 | 21 | 2020 |
Structure–property linkage in shocked multi-material flows using a level-set-based Eulerian image-to-computation framework S Roy, NK Rai, O Sen, HS Udaykumar Shock Waves 30 (5), 443-472, 2020 | 16 | 2020 |
Effects of parametric uncertainty on multi-scale model predictions of shock response of a pressed energetic material S Lee, O Sen, NK Rai, NJ Gaul, KK Choi, HS Udaykumar Journal of applied physics 125 (23), 2019 | 15 | 2019 |
Unified approach for meso-informed burn models in shocked energetic materials HS Udaykumar, O Sen, S Lee, NK Rai Journal of propulsion and power 36 (5), 655-667, 2020 | 13 | 2020 |
Modeling impact‐induced damage and debonding using levelsets in a sharp interface Eulerian framework A de Brauer, NK Rai, ME Nixon, HS Udaykumar International Journal for Numerical Methods in Engineering, 0 | 11 | |
Numerical framework for mesoscale simulation of heterogeneous energetic materials NK Rai The University of Iowa, 2015 | 8 | 2015 |
Evaluation of thermodynamic closure models for partially reacted two-phase mixture of condensed phase explosives NK Rai, TD Aslam Journal of Applied Physics 131 (18), 2022 | 6 | 2022 |
Novel method to control explosive shock sensitivity: A mesoscale study to understand the effect of thermally expandable microsphere (TEM) inclusions in high explosives (HE … NK Rai, W Lee Perry, AL Duque Journal of Applied Physics 131 (17), 2022 | 6 | 2022 |