Results 21 to 30 of about 888 (231)

Effect of Metal Nanopowders on the Performance of Solid Rocket Propellants: A Review

open access: yesNanomaterials, 2021
The effects of different types of nano-sized metal particles, such as aluminum (nAl), zirconium (nZr), titanium (nTi), and nickel (nNi), on the properties of a variety of solid rocket propellants (composite, fuel-rich, and composite modified double base (
Weiqiang Pang   +7 more
doaj   +1 more source

Influence of storage time before casting on viscosities and mechanical properties of AP/HTPB/Al solid composite propellants

open access: yesFirePhysChem, 2022
Solid rocket motors can contain different quantity of solid composite propellant. In the Brazilian Aerospace Program, a considerable difference of the propellant masses used in each rocket motor is observed.
Bruno Cesar Christo Da Cunha   +2 more
doaj   +1 more source

Analysis on damage characteristics and detonation performance of solid rocket engine charge subjected to jet

open access: yesDefence Technology, 2022
To further explore the damage characteristics and impact response of the shaped charge to the solid rocket engine (SRE) in storage or transportation, protective armor was designed and the shelled charges model (SCM)/SRE with protective armor impacting by
Song-lin Pang   +4 more
doaj   +1 more source

REINFORCEMENT OF COMPOSITE ROCKET PROPELLANTS BY COTTON AND NITROCELLULOSE FIBRES [PDF]

open access: yesInternational Conference on Aerospace Sciences and Aviation Technology, 1997
The Egyptian extra long stapled cotton "GIZA76" which has a very good mechanical and chemical properties [I] was selected as a raw material to obtain nitrocellulose energetic fibres, such fibres can be used as a reinforcing agent in propellant formulations instead of inert fibres to improve not oniy the mechanical properties of composite propellants ...
H. MOSTAFA   +3 more
openaire   +1 more source

Mechanical properties of HTPB composite propellants in the initial period of service life [PDF]

open access: yesScientific Technical Review, 2014
Uniaxial tensile tests of different composite solid rocket propellant compositions, based on hydroxyl-terminated polybutadiene (HTPB), have shown that mechanical properties extensively change after curing, up to 100% of their initial values, during the ...
Gligorijević Nikola   +6 more
doaj  

Burn rate of a novel boron-AN-water green solid propellant

open access: yesFirePhysChem, 2022
A novel composition of green solid rocket propellant has been suggested and examined. Boron powder was chosen to serve as fuel, for its very high energetic potential, which exceeds that of other common metals, as well as that of fossil fuels.
Adi Zamostianu, Yinon Yavor
doaj   +1 more source

Experimental solid and liquid propellant rocket development in Universiti Teknologi Malaysia : 1992-2011 [PDF]

open access: yes, 2015
This paper reports on the research and development activities related to the experimental solid and liquid propellant rocket in Universiti Teknologi Malaysia (UTM) from year 1992 to 2011.
Azhanie Sardangi
core   +2 more sources

Reliability of solid rocket propellant grain under simultaneous action of multiple types of loads [PDF]

open access: yesScientific Technical Review, 2016
A case-bonded solid propellant rocket grain is subjected to many stress-inducing loads during the service life, due to temperature, extended polymerization, transportation, vibration, acceleration, aerodynamic heating etc.
Gligorijević Nikola   +6 more
doaj  

Computational fluid dynamics simulations for composite rocket propellant optimization

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract When designing a rocket engine configuration, both in terms of propellant grain, combustion chamber and nozzle geometry, one of the most convenient approach is using Computational Fluid Dynamics (CFD) Simulation. Numerical simulation is an alternative method of scientific investigation, which substitutes large number of ...
F-M Dîrloman   +6 more
openaire   +1 more source

Effect of cyclic loads on structural damage of rocket propellant grain [PDF]

open access: yesScientific Technical Review, 2019
Rocket motor propellant grain, cast or bonded into the motor chamber or solid coating, is exposed to various loads during its service life. Rocket propellant is a viscoelastic material, whose mechanical properties strongly depend on temperature and ...
Gligorijević Nikola   +5 more
doaj  

Home - About - Disclaimer - Privacy