Results 21 to 30 of about 1,005,662 (212)

Parameters Affecting the Erosive Burning of Solid Rocket Motor

open access: yesMATEC Web of Conferences, 2018
Increasing the velocity of gases inside solid rocket motors with low port-to-throat area ratios, leading to increased occurrence and severity of burning rate augmentation due to flow of propellant products across burning propellant surfaces (erosive ...
Abdelaziz Almostafa   +2 more
doaj   +1 more source

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

Preliminary research of composite rocket propellants including octogene [PDF]

open access: yesScientific Technical Review, 2017
Composite solid propellants based on ammonium perchlorate/hydroxyterminated polybutadiene/isophorone dyisocyanate including different contents of octogene (HMX) have been represented in this paper. The mass of HMX increased in relation to oxidant, with constant bimodal fraction ratio.
Rodić Vesna   +5 more
openaire   +2 more sources

Possibility of aluminium/magnesium exchange in composite rocket propellants [PDF]

open access: yesScientific Technical Review, 2018
Composite solid propellants based on ammonium perchlorate/hydroxyterminated polybutadiene/isophorone dyisocyanate including two metal components: aluminium and magnesium with different contents have been represented in this paper. The mass of metal powder has increased in relation to oxidant, with constant bimodal fraction ratio and total solid phase ...
Rodić Vesna   +3 more
openaire   +2 more sources

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

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

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

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  

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