Engineering Commons^™

Multidimensional Modeling Of Solid Propellant Burning Rates And Aluminum Agglomeration And One-Dimensional Modeling Of Rdx/Gap And Ap/Htpb, Matthew Wilder Tanner

Theses and Dissertations

This document details original numerical studies performed by the author pertaining to solid propellant combustion. Detailed kinetic mechanisms have been utilized to model the combustion of the pseudo-propellants RDX/GAP and AP/HTPB. A particle packing model and a diffusion flame model have been utilized to develop a burning rate and an aluminum agglomeration model. The numerical model for RDX/GAP combustion utilizes a "universal" gas-phase kinetic mechanism previously applied to combustion models of several monopropellants and pseudo-propellants. The kinetic mechanism consists of 83 species and 530 reactions. Numerical results using this mechanism provide excellent agreement with RDX and GAP burning rate data, …

Powder Rolling Of Cnt-Reinforced Aluminum Strips, Mostafa Abdel-Fattah El-Borady

Archived Theses and Dissertations

Multi walled carbon nanotubes (MWCNT) were added to aluminum powder (99.97% pure) to produce a composite material. Three mixing techniques were examined

1 Low energy mixing: Using a Turbula mixer with two different speeds 48 and 67 rpm.

2 High energy mixing: Using a ball mill without adding any balls in the mixing jars with two speeds 300 and 400 rpm.

3 Ball milling: Using the ball mill (with steel balls) to mix higher CNT weight fraction samples for the electrical resistivity tests.

The mixtures were packed in copper cans and rolled in a rolling machine to compact the mixture; …