Results 111 to 120 of about 52,081 (256)

Propellant variability assessment [PDF]

Efforts to determine whether rocket propellant density and modulus can be reliably measured using non-destructive ultrasonic techniques are reported.
Schad, Kristin, Tytula, Thomas P.
core   +1 more source

Investigating Premature Ignition of Thruster Pressure Cartridges by Vibration-Induced Electrostatic Discharge [PDF]

, 2010
Pyrotechnic thruster pressure cartridges (TPCs) are used for aeroshell separation on a new NASA crew launch vehicle. Nondestructive evaluation (NDE) during TPC acceptance testing indicated that internal assemblies moved during shock and vibration testing
Saulsberry, Regor, Woods, Stephen S.
core   +1 more source

HTPB propellant binder supplemented with Nitro Potato Starch: formulation, characterization, and thermal decomposition behavior

FirePhysChem, 2023
Mohammed Jouini, A. Abdelaziz, D. Trache, A. F. Tarchoun, Souhil Amokrane, Abdelali Benzetta, A. Mezroua   +6 more
semanticscholar   +1 more source

Ultrasonically Accelerated Nitration of Hydroxyl-Terminated Polybutadiene: Process Efficiency and Product Characterization

Eng
Hydroxyl-terminated polybutadiene (HTPB) is widely studied and the most used prepolymer for the binder system of composite solid propellants. A suitable functionalization of HTPB with energetic groups greatly improves the performance of the propellant ...
Ventsislav Bakov, Spaska Yaneva, Nadezhda Rangelova, Milko Berner, Damyan Ganchev, Nikolai Georgiev   +5 more
doaj   +1 more source

Hybrid propulsion technology program. Volume 1: Conceptional design package [PDF]

A concept design study was performed to configure two sizes of hybrid boosters; one which duplicates the advanced shuttle rocket motor vacuum thrust time curve and a smaller, quarter thrust level booster.
Holzman, Allen L., Humphrey, John, Jensen, Gordon E., Keilbach, Joseph, Leisch, Steven O., Parsley, Randy   +5 more
core   +1 more source

Genetic Algorithm Optimization of a Cost Competitive Hybrid Rocket Booster [PDF]

Performance, reliability and cost have always been drivers in the rocket business. Hybrid rockets have been late entries into the launch business due to substantial early development work on liquid rockets and later on solid rockets.
Story, George
core   +1 more source

Curing Properties of HTPB-based Solid Propellants

Journal of the Korean Society of Propulsion Engineers, 2022
Su-A Jeon, Jee-Hun Ahn, Hang-seok Seo, Han-Jun Kim, Eui-yong Park   +4 more
openaire   +1 more source

Performance evaluation of commercial copper chromites as burning rate catalyst for solid propellants [PDF]

, 2010
Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Eunice Aparecida Campos, Koshun Iha, Luis Cláudio Rezende, Milton Faria Diniz, Rita de Cássia L. Dutra, Wilma Massae Dio Nawa   +5 more
core  

Experimental and simulation study on micro damage of HTPB propellant under multi angle tensile shear loading

Polymer Testing
The damage evolution of composite solid propellants is influenced by the stress state. In order to investigate the in-situ damage evolution mechanism of hydroxyl terminated polybutadiene (HTPB) propellant under tensile shear conditions, computer ...
Wang Jiaxiang, Qiang Hongfu, Pei Shudi, Li Shiqi   +3 more
doaj   +1 more source

Technical Assessments of Future European Space Transportation Options [PDF]

, 2007
The paper describes some of the most recent activities in Germany in the technical assessment of future European launcher architecture. In focus is a joint effort of DLR-SART with German launcher industry in the definition of a next generation upper ...
Dutheil, Jean-Philippe, Philip, Peter, Sippel, Martin, van Foreest, Arnold   +3 more
core