A Physics‐Aware Deep Learning Model for Energy Localization in Multiscale Shock‐To‐Detonation Simulations of Heterogeneous Energetic Materials

PCH Nguyen, YT Nguyen, PK Seshadri… - Propellants …, 2023 - Wiley Online Library
Predictive simulations of the shock‐to‐detonation transition (SDT) in heterogeneous
energetic materials (EM) are vital to the design and control of their energy release and …

Multi-scale modeling of shock initiation of a pressed energetic material III: Effect of Arrhenius chemical kinetic rates on macro-scale shock sensitivity

P Parepalli, YT Nguyen, O Sen, DB Hardin… - Journal of Applied …, 2024 - pubs.aip.org
Multi-scale predictive models for the shock sensitivity of energetic materials connect energy
localization (“hotspots”) in the microstructure to macro-scale detonation phenomena …

Physically evocative meso-informed sub-grid source term for energy localization in shocked heterogeneous energetic materials

YT Nguyen, PK Seshadri, HS Udaykumar - Journal of Applied Physics, 2023 - pubs.aip.org
Reactive burn models for heterogeneous energetic materials (EMs) must account for
chemistry as well as microstructure to predict shock-to-detonation transition (SDT). Upon …

Structural properties and mechanical behavior of three-dimensional cylindrical particle-like systems under in situ loading

YJ Gu, FX Chen, Y Yu, C Cui, Y Zhang, JL Liu… - Powder Technology, 2025 - Elsevier
To investigate the mechanical behavior of granular systems and their impact on density
uniformity during compression, a three-dimensional micro-CT in situ loading experiment was …

Effect of thermal conditioning on the initiation threshold of secondary high‐explosives

A Maiti, WL Shaw, SM Clarke, C Fox… - Propellants …, 2024 - Wiley Online Library
While most performance metrics of high‐explosive (HE) based devices like detonation
velocity, detonation pressure, and energy output are expected to degrade over time, the …