Results 91 to 100 of about 1,895 (230)

Combustion theory and modeling [PDF]

open access: yes, 2005
In honor of the fiftieth anniversary of the Combustion Institute, we are asked to assess accomplishments of theory in combustion over the past fifty years and prospects for the future.
Buckmaster, J.   +6 more
core   +2 more sources

Viscoelastic constitutive model of HTPB composite propellant

open access: yesJournal 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

Understanding Kelvin-Helmholtz Instability in Paraffin-Based Hybrid Rocket Fuels [PDF]

open access: yes, 2018
Liquefying fuels show higher regression rates than the classical polymeric ones. They are able to form, along their burning surface, a low viscosity and surface tension liquid layer, which can become unstable (Kelvin--Helmholtz instability) due to the ...
Kobald, Mario   +2 more
core   +1 more source

The effect of reactive plasticizer on viscoelastic and mechanical properties of solid rocket propellants based on different types of HTPB resin

open access: yesDefence Technology
Conventional plasticizers deteriorate mechanical and viscoelastic properties of the propellants due to their migration upon aging and long-term storage, which affects reliability and safety properties during exploitation.
Tihomir Kovačević   +5 more
doaj   +1 more source

Technical Assessments of Future European Space Transportation Options [PDF]

open access: yes, 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   +3 more
core  

Study on Constitutive Equation of Cumulative Damage of HTPB Propellant

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Abstract In order to analyze the interaction of creep and fatigue of composite solid propellant, and provide the basis for calculation of cumulative damage and reliability analysis of the solid rocket motor during the period of storage, the constant stress loading destruction experiment, constant stress amplitude reciprocating tensile ...
Xin Wang, Ruyan Zhao, Ming Yang
openaire   +1 more source

Effect of MAPO and T313 on the Rheological and Mechanical Properties of Composite Solid Propellant Based on HTPB [PDF]

open access: yesفناوری در مهندسی هوافضا, 2019
Composite solid propellants have found wide spread applications in missile industries, such as high density, high specific impulse, and possibility of producing large scale grains.
Seyed Amanollah Mousavi Nodoushan   +3 more
doaj  

Properties of high-energy propellants based on oxygen-enriched thermoplastic elastomer binders

open access: yesFirePhysChem
Composite propellants are widely used in applications ranging from gas generators and small rockets to large rocket systems in space programs. This study presents a novel thermoplastic elastomer (TPE) binder system based on oxygen-enriched polyether ...
Vladica S Bozic
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

Introduction to the problem [PDF]

open access: yes
Solid propellant rockets were used extensively in space missions ranging from large boosters to orbit-raising upper stages. The smaller motors find exclusive use in various earth-based applications.
Ramohalli, Kumar
core   +1 more source

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