Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Oishik Sen"'
Publikováno v:
Propellants, Explosives, Pyrotechnics. 48
Autor:
Yen T. Nguyen, Pradeep K. Seshadri, Oishik Sen, David B. Hardin, Christopher D. Molek, H. S. Udaykumar
Publikováno v:
Journal of Applied Physics. 131
Heterogeneous energetic materials (EMs) contain microstructural defects such as voids, cracks, interfaces, and delaminated zones. Under shock loading, these defects offer potential sites for energy localization, i.e., hotspot formation. In a porous E
Publikováno v:
Combustion and Flame. 219:225-241
Meso-scale modeling of heterogeneous energetic materials requires accurate description of the chemical reaction model that governs the decomposition of solid energetic crystals to gaseous products. For HMX, various 1-step and multi-step Arrhenius bas
Publikováno v:
Journal of Propulsion and Power. 36:655-667
Reactive hydrocode calculations of shock-to-detonation transition in heterogeneous energetic (HE) materials need to be closed with burn models. One requirement of burn models is to supply a macrosc...
Autor:
S. Roy, E.J. Welle, C.D. Molek, Min-Yeong Moon, Oishik Sen, H. S. Udaykumar, Kyung K. Choi, Nirmal Kumar Rai
Publikováno v:
Multiscale and Multidisciplinary Modeling, Experiments and Design. 3:265-293
In porous solid energetic materials, the mechanical processing technique (e.g. casting, pressing) creates defects such as voids, cracks, interfaces, and inclusions; these defects in the microstructure strongly influence the sensitivity of the materia
Publikováno v:
Shock Waves. 30:443-472
Morphology and dynamics at the meso-scale play crucial roles in the overall macro- or system-scale flow of heterogeneous materials. In a multi-scale framework, closure models upscale unresolved sub-grid (meso-scale) physics and therefore encapsulate
Publikováno v:
Journal of Applied Physics. 132:185902
This paper demonstrates a novel Eulerian computational framework for modeling anisotropic elastoplastic deformations of organic crystalline energetic materials (EM) under shocks. While Eulerian formulations are advantageous for handling large deforma