Results 71 to 80 of about 988 (214)

Numerical study of cook-off temperature and ignition dynamics in high-energetic materials

Academia Engineering
This study presents an approach for predicting temperatures and ignition time during the cook-off process of solid propellants, with a focus on identifying potential hot spots and conduction losses.
Mukhtiar Ahmed, Yang Yang, Binguang Niu, Xiaoxing Liu   +3 more
doaj   +1 more source

Estudo da decomposição térmica de propelente sólido compósito de baixa emissão de fumaça Study of thermal decomposition of a smokelles propellant

Química Nova, 2008
The thermal decomposition of hydroxyl-terminated polybutadiene (HTPB)/ammonium nitrate (AN) based propellants, so called smokeless formulations, and raw materials were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The
Jony Andrade, Antonio Gonçalves Frutuoso, Koshun Iha, José Atílio Fritz Fidel Rocco, Eduardo M. Bezerra, Jivaldo do Rosário Matos, Maria Encarnación Vázquez Suárez-Iha   +6 more
doaj   +1 more source

Throttleable Solid Propellants Through Embedded Shape Memory Alloy and Resistance Wires

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 3, March 2025.
Throttling behavior of expanding propellants ABSTRACT Solid propellants are used in propulsion systems for their high performance, feasibility to manufacture, long shelf life, and ease of storage and handling; however, they are limited by the inability to actively control the burning rate.
Derek K. Messer, Cohen T. Nunes, Metin Örnek, Steven F. Son   +3 more
wiley   +1 more source

Segmentation of RDX and TNT in X‐Ray Computed Tomography Reconstructions of Melt‐Cast Explosives

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 2, February 2025.
Flow chart outlining our process for x‐ray CT data segmentation and quantitative anlayses of explosive microstructures. ABSTRACT Three‐dimensional mesoscale characterization of heterogeneous melt‐cast high explosives is challenging because of the difficulty differentiating binder from explosive crystals: two functionally different materials which are ...
Brian M. Rogers, Anthony J. Hardy, Keith R. Coffee, Fowzia Zaka, John D. Sain, Seemeen S. Karimi, Franco J. Gagliardi, Jolyon A. Browne, Joseph W. Tringe   +8 more
wiley   +1 more source

Pengaruh Ukuran Partikel Oksidator Pada Karakteristik Propelan HTPB

, 1997
Particle size of the oxidizer Ammonium Perchlorates in propellant will influence the burning rate of propellant. The burning rate may increase by decreasing the average diameter of Ammonium Perch!orates.
Atwirman Syarkawi, Siti Prangili, Henny Setyaningsih, Choirul Fatchan   +3 more
core  

Combustion characterization of ammonium perchlorate based solid rocket propellant [PDF]

, 2011
There were many studies on ammonium perchlorate (AP) based solid rocket propellant (SRP) and some data already exist. However, there is no complete data available in Malaysia especially the information on the combustion characteristics of baseline data ...
Aziz, Amir
core  

Ageing behaviour of HTPB based rocket propellant formulations

, 2022
S.77.1-77.12The knowledge of the ageing behaviour of energetic materials is fundamental in order to estimate the in-service time period of the system.
Menke, Klaus, Cerri, Sara, Bohn, Manfred
core  

Environmentally safe (chlorine-free): new green propellant formulation based on 2,2,2-trinitroethyl-formate and HTPB [PDF]

, 2018
A new green (chlorine-free) high energy dense oxidizer (HEDO) 2,2,2-trinitroethyl-formate (TNEF) and its propellant formulation based on the hydroxyl-terminated polybutadiene (HTPB) as a binder was prepared and studied.
Klapötke, Thomas M., Thomas M. Klapötke, Abd-Elghany, Mohamed, Mohamed Abd-Elghany, Ahmed Elbeih, Elbeih, Ahmed   +5 more
core   +1 more source

Review of novel energetic polymers and binders – high energy propellant ingredients for the new space race

Designed Monomers and Polymers, 2019
Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB).
Tianze Cheng
doaj   +1 more source

Viscoelastic constitutive model of HTPB composite propellant

Journal of Physics: Conference Series
Abstract The nonlinear mechanical behavior and temperature sensitivity of HTPB propellant for solid rocket motors were investigated. The rate-dependent mechanical properties of the propellant were examined through a combination of experiments and numerical simulations.
Beiqiang Qi, Ruixiang Bai, Zhenkun Lei
openaire   +1 more source