A numerical approach to simulate the evolution of combustion surface an energetic composite materials is described. Cubic spline interpolation used describe dynamically changing shape surface. The statement problem for parametric description geometry and choosing method parameterizing control points are given. direct step-bystep calculate front. normal velocity variable determined from solution...

Abstract. Detonations represent high-speed chemical reactions characterized by rapid propagation, accompanied a release of high-pressure energy. This transformative process converts unreacted explosive materials into stable product molecules, reaching steady state known as the Chapman-Jouguet (CJ) state. study aims to effectively describe detonation phenomenon in energetic through application C...

Title of Document: ENERGETIC BIOCIDAL MATERIALS AND SPORE NEUTRALIZATION Wenbo Zhou, Doctor of Philosophy, 2015 Directed By: Professor Michael R. Zachariah, Department of Chemical and Biomolecular Engineering and Department of Chemistry and Biochemistry The objective of this dissertation is to explore a more accurate and versatile approach to investigating the neutralization of spores suffered ...

Piezoelectric initiators are a unique form of ignition for energetic material because the current and voltage are tied together by impact loading on the crystal. This study examines the ignition response of an energetic composite composed of aluminum (Al) and molybdenum trioxide (MoO3) nano-powders to the arc generated from a lead zirconate and lead titanate (PZT) piezocrystal. The mechanical s...

The computation of detonation waves in heterogeneous explosives involves compressible multiphase mixtures due to the chemical decomposition of the energetic material as well as its heterogeneous initial formulation. Also material interfaces are present between the explosive and the surrounding inert or reactivematerials.Wedevelop anewmethod for the modelling of interface problems andmultiphasem...

Despite rapid advances in the design and fabrication of miniaturized sensors and devices, their practical applications have been impeded by the lack of suitably miniscule sources of electrical power. Indeed, the generation and storage of electrical energy for mobile devices and systems is one of the most urgent challenges in science and engineering today. Microand nanoscale devices — such as ul...

This short paper reviews the current theoretical approach to understanding initiation and growth of reaction in energetic materials at Fort Halstead. Theoretical models at the molecular level are used to help develop algorithms at the macroscopic level which can then be used to model real systems. The study of initiation and growth of reaction in energetic materials has been a rapidly expanding...

The Cryocycling of Energetic Materials Project was executed in the period FY’94-96 as a Life Cycle Engineering activity in the Memorandum of Understanding (MOU) on advanced conventional munitions. This MOU is an agreement between the Departments of Energy and Defense (Office of Munitions) that facilitates the development of technologies of mutual interest to the two Departments. The cryocycling...

Recently there has been increased interest in high nitrogen content “green” energetic materials which are designed to produce relatively non-toxic decomposition products as part of a push to decrease the environmental impact of energetic materials through all phases of their existence. With the use of a T-Jump/Time-of-Flight Mass Spectrometer (T-Jump/TOFMS) capable of high heating rates (up to ...