Keywords

Laser, Spectroscopy, Temperature, Harsh, Reactive materials, High Explosives

Abstract

Reactive material liners paired with high explosives can significantly increase blast effects. This research aims to study the properties that primarily control the interaction between reactive materials (RM) and high explosives (HE). This will facilitate blast performance optimization for the RM and HE combinations. A laser spectroscopic sensor will be utilized to measure the performance of these RM and HE combinations. Laser absorption spectroscopy (LAS) is a technique that measures the chemical concentration of a medium through the intensity change of the laser beam. The laser diagnostic instrument is composed of two tunable diode lasers, one centered at 2.48 μm and the other at 2.55 μm. The sensor is designed to measure H2O species concentration in the blast wave using the beer-lambert law. It will also measure the temperature of the blast with a high temperature sensitivity in the 1000 K to 2600 K range. The temperature and concentration data will be used to assess the combustion performance of the blast. The data was collected at a 200 MHz sampling frequency through a fiber-coupled optical probe designed to shield the sensitive optical equipment. The resulting blast temperature and molar concentration of H2O will be used to determine the optimal RM liner and HE pairings in the MMRT chamber. This research will enable the AFRL to expand their understanding of the RM and HE pairings.

Completion Date

2023

Semester

Fall

Committee Chair

Vasu Sumathi, Subith

Degree

Master of Science in Aerospace Engineering (M.S.A.E.)

College

College of Engineering and Computer Science

Department

Mechanical and Aerospace Engineering

Degree Program

Aerospace Engineering

Format

application/pdf

Language

English

Release Date

June 2024

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Campus Location

Orlando (Main) Campus

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