Results 71 to 80 of about 4,212 (194)

Transient processes in the combustion of nitramine propellants [PDF]

open access: yes
A transient combustion model of nitramine propellants is combined with an isentropic compression shock formation model to determine the role of nitramine propellant combustion in DDT, excluding effects associated with propellant structural properties or ...
Cohen, N. S., Strand, L. D.
core   +1 more source

Reduced Reaction Mechanism for Rocket Nozzle Ablation Simulations [PDF]

open access: yes, 2017
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143107/1/6.2017-3682 ...
Boyd, Iain D., Cross, Peter G.
core   +1 more source

PENGARUH DIOCTYL ADIPATE TERHADAP SIFAT RHEOLOGIKAL HTPB TERPLASTISISASI (EFFECT OF DIOCTYL ADIPATE ON THE RHEOLOGICAL PROPERTIES OF PLASTICIZED HTPB)

open access: yesJurnal Teknologi Dirgantara, 2019
Pengembangan pengetahuan terhadap sifat rheologikal isian cair dari propelan berguna untuk mendapatkan sifat slurry yang optimum. Pengembangan ini dapat dimulai dari campuran HTPB-DOA sehingga penelitian ini bertujuan untuk mengetahui pengaruh DOA terhadap sifat rheologikal HTPB-DOA yang meliputi sifat alir terhadap shear rate, viskositas dan ...
Afni Restasari   +3 more
openaire   +1 more source

Catalytic effects of transition metal oxides on HTPB-based fuel polymer matrices

open access: yesFirePhysChem
Low regression rate due to difficult pyrolysis is a major challenge in the practical application of terminated hydroxyl‑terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion.
Hongwei Gao   +6 more
doaj   +1 more source

Avaliação das propriedades mecânicas e da permeabilidade a gases de membranas obtidas a partir de dispersões aquosas de poliuretanos à base de polibutadieno líquido hidroxilado Evaluation of mechanical properties and gas permeability of membranes obtained from polyurethane aqueous dispersions based on hydroxyl-terminated polybutadiene

open access: yesPolímeros, 2004
O desenvolvimento de sistemas não-poluentes tem sido cada vez mais necessário para atender às exigências ambientais. Neste trabalho foram sintetizadas formulações de poliuretanos à base de água para a obtenção de membranas densas cujas propriedades ...
Fernanda M. B. Coutinho   +2 more
doaj   +1 more source

Solid Propulsion Integrity Program (SPIP) for verifiable enhanced solid rocket motor reliability [PDF]

open access: yes
To increase the success rate of U.S. built Rocket Motors (SRM), the approach taken is: (1) set common reliability goals for nozzles, cases, bondline, propellant, and insulation; (2) build a common engineering data base to support standard industry-wide ...
Butler, Barry L.
core   +1 more source

Demonstration of a sterilizable solid rocket motor system [PDF]

open access: yes
A solid propellant rocket motor containing 60.9 Kg (134-lb) of propellant was successfully static fired after being subjected to eight heat sterilization cycles (three 54-hour cycles plus five 40-hour cycles) at 125 C (257 F).
Lambert, W. L.   +2 more
core   +1 more source

Ares V: A National Launch Asset for the 21st Century [PDF]

open access: yes, 2009
NASA is designing the Ares V as the cargo launch vehicle to carry NASA's exploration plans into the 21st century. The Ares V is the heavy-lift component of NASA's dual-launch architecture that will replace the current space shuttle fleet, complete the ...
Creech, Steve, Sumrall, Phil
core   +1 more source

Enhancement of the energetic performance of solid fuels with metal-fluoropolymer additives

open access: yesFirePhysChem
Aluminum (Al) holds a pivotal role in augmenting the energetic potential of solid fuel formulations. Its incorporation can notably amplify the energy yield upon combustion.
Ayush Koul   +6 more
doaj   +1 more source

Technique for Evaluating the Erosive Properties of Ablative Internal Insulation Materials [PDF]

open access: yes
A technique for determining the average erosion rate versus Mach number of candidate internal insulation materials was developed for flight motor applications in 12 inch I.D. test firing hardware.
Hitner, J. M., McComb, J. C.
core   +1 more source

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