Results 141 to 150 of about 317 (165)
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Journal of Molecular Modeling
In order to estimate the mechanical behavior of the propellant under working pressures, the effect of pressure on the mechanical properties of hydroxyl-terminated polybutadiene (HTPB) propellants was studied by analyzing the uniaxial tensile strength and maximum strain master curves under the test conditions of - 20 ~ 70 °C, 0.5 mm/min ~ 500 mm/min ...
Tao, Guo +5 more
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In order to estimate the mechanical behavior of the propellant under working pressures, the effect of pressure on the mechanical properties of hydroxyl-terminated polybutadiene (HTPB) propellants was studied by analyzing the uniaxial tensile strength and maximum strain master curves under the test conditions of - 20 ~ 70 °C, 0.5 mm/min ~ 500 mm/min ...
Tao, Guo +5 more
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Iranian Polymer Journal, 2021
Dynamic mechanical properties of thermal aging hydroxyl-terminated polybutadiene (HTPB)-based propellant were tested using split Hopkinson pressure bar (SHPB) under low temperature (− 50 to 25 °C) and high strain rate (800–2000s−1). Relevant test data were obtained.
Bing Long +2 more
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Dynamic mechanical properties of thermal aging hydroxyl-terminated polybutadiene (HTPB)-based propellant were tested using split Hopkinson pressure bar (SHPB) under low temperature (− 50 to 25 °C) and high strain rate (800–2000s−1). Relevant test data were obtained.
Bing Long +2 more
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39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2003
Hydroxy -terminated Polybutadiene, HTPB, which is a fuel used in solid and hybrid rockets is a polymer with unknown mechanical properties. As simulations of rocket motors are undertaken to determine design specifications, it becomes important to know the mechanical properties.
Andrew Wright +3 more
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Hydroxy -terminated Polybutadiene, HTPB, which is a fuel used in solid and hybrid rockets is a polymer with unknown mechanical properties. As simulations of rocket motors are undertaken to determine design specifications, it becomes important to know the mechanical properties.
Andrew Wright +3 more
openaire +1 more source
Proceedings of the Combustion Institute, 2000
The gas-phase flame structure that forms over a lamina of hydroxyl-terminated polybutadiene (HTPB) binder (50 to 450 μm) sandwiched between layers of ammonium perchlorate (AP) has been investigated through measurements of the surface regression rate of the interface region, ultraviolet emission and transmission imaging of the gas-phase flame zone, and ...
B.T. Chorpening +2 more
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The gas-phase flame structure that forms over a lamina of hydroxyl-terminated polybutadiene (HTPB) binder (50 to 450 μm) sandwiched between layers of ammonium perchlorate (AP) has been investigated through measurements of the surface regression rate of the interface region, ultraviolet emission and transmission imaging of the gas-phase flame zone, and ...
B.T. Chorpening +2 more
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Propellants, Explosives, Pyrotechnics, 2011
AbstractAmorphous boron powder granulated with HTPB, whose particle diameter could be controlled, was prepared by mechanical mill method. It was found that amorphous boron powder could be granulated with HTPB binder to form B‐HTPB particles, whose median particle diameter (d50) and specific surface area are in the range of 125.0–431.0 µm and 0.02–0.1 ...
Weiqiang Pang +7 more
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AbstractAmorphous boron powder granulated with HTPB, whose particle diameter could be controlled, was prepared by mechanical mill method. It was found that amorphous boron powder could be granulated with HTPB binder to form B‐HTPB particles, whose median particle diameter (d50) and specific surface area are in the range of 125.0–431.0 µm and 0.02–0.1 ...
Weiqiang Pang +7 more
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Hydroxyl-Terminated Polybutadiene Telechelic Polymer (HTPB): Binder for Solid Rocket Propellants
Rubber Chemistry and Technology, 1995Abstract This paper presents a review of hydroxyl-terminated polybutadiene telechelic polymer (HTPB) with emphasis on its preparation, properties, end group modifications, hydrogenation, role as polyurethane precursors and binders for solid rocket propellants.
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Mesoscopic Damage Evolution of Hydroxyl‐Terminated Polybutadiene Propellants under Biaxial Tension
Propellants, Explosives, PyrotechnicsABSTRACTThis study conducted systematic in‐situ tensile scanning tests on hydroxyl‐terminated polybutadiene (HTPB) propellant under biaxial tensile conditions. It successfully acquired in‐situ experimental data at different tensile ratios. Through in‐depth analysis of the experimental data, the study elucidated the damage evolution mechanism of HTPB ...
Bin Yuan +4 more
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Evrimata: Journal of Mechanical Engineering
The solid propellant consists of ammonium perchlorate (AP)/Hydroxyl- Terminated Polybutadiene (HTPB) composite material. In this research, innovation was carried out using epoxy as a substitute for HTPB. The analysis carried out in this research includes analysis of fuel propagation speed, combustion temperature, exit pressure, gas speed, and thrust ...
Maryono Maryono +2 more
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The solid propellant consists of ammonium perchlorate (AP)/Hydroxyl- Terminated Polybutadiene (HTPB) composite material. In this research, innovation was carried out using epoxy as a substitute for HTPB. The analysis carried out in this research includes analysis of fuel propagation speed, combustion temperature, exit pressure, gas speed, and thrust ...
Maryono Maryono +2 more
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Propellants, Explosives, Pyrotechnics
ABSTRACTChanges in the aging properties of hydroxyl‐terminated polybutadiene (HTPB)‐based propellants are typically observed as variations in mechanical properties at the macroscopic level. This study establishes an indentation contact model based on indentation theory and viscoelastic constitutive equations to examine how material parameters evolve ...
Xiaohong Gui +3 more
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ABSTRACTChanges in the aging properties of hydroxyl‐terminated polybutadiene (HTPB)‐based propellants are typically observed as variations in mechanical properties at the macroscopic level. This study establishes an indentation contact model based on indentation theory and viscoelastic constitutive equations to examine how material parameters evolve ...
Xiaohong Gui +3 more
openaire +1 more source