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Development of AP/HTPB based Fuel-rich Propellant for Solid Propellant Ramjet
49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2013It is well known that reduction of Ammonium Perchlorate (AP) content in composite propellant reduces the burn rate of solid composite propellants. Below a certain level of AP content the propellant does not burn. This paper explores ways to enhance the burn rate of fuel-rich composite solid propellant.
jogesh K. nanda, P. A. Ramakrishna
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Critical impact initiation energies for three HTPB propellants
26th Joint Propulsion Conference, 1990The instrumented drop weight impact machine is one possible candidate for establishing the hazard response of solid rocket propellants to impact. The plastic work done on the propellant prior to initiation can be measured by equating it to the loss in drop weight kinetic energy, provided energy storage in the machine is negligible.
P. J. Baker, A. M. Mellor, C. S. Coffey
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Study on the Fracture Properties of HTPB Propellant at Low Temperature
Propellants, Explosives, Pyrotechnics, 2019AbstractIn order to study the fracture behaviour of hydroxyl‐terminated polybutadiene (HTPB) propellant, the low temperature fracture toughness experiment of HTPB propellant was carried out by using centrally cracked sheet tensile specimens. The fracture toughness values of HTPB propellant with mode I crack at different temperature and loading rate ...
Bing Long +2 more
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Emission imaging of AP/HTPB propellant sandwich combustion
Combustion Science and Technology, 2002Ultraviolet emission imaging (305-315 nm) was used to study the combustion of sandwiches of ammonium perchlorate (AP) and hydroxyl-terminated polybutadiene (HTPB) in nitrogen at pressures up to 32 atm, with binder layers from 50 to 450 µm in thickness.
B. T. Chorpening, M. Q. Brewster
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Investigation of Aluminum Agglomeration in AP/HTPB Composite Propellants
44th AIAA Aerospace Sciences Meeting and Exhibit, 2006Aluminum flame conditions, burning surface structure, and surface regression rate of co mposite propellant laminates of aluminum powder, fine and coarse ammonium perchlorate (AP), and hydroxyl -terminated polybutadiene (HTPB) are experimentally investigated. An aluminum matrix consisting of 15 µm Al powder mixed with fine -AP/HTPB (76:24) is sandwiched
J. Mullen, M. Brewster
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The Damage Law of HTPB Propellant under Thermomechanical Loading
Journal of Energetic Materials, 2015By way of measuring the acoustic emission (AE) signals of Hydroxyl-terminated polybutadiene (HTPB) propellant in condition of uniform speed, and combined with the scanning electron microscopy (SEM) fracture surface observation, the damage law of HTPB composite solid propellant under thermomechanical loading was studied.
Cheng-wu Liu +3 more
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Structure‐property relationship of HTPB‐based propellants. I. Effect of hydroxyl value of HTPB resin
Journal of Applied Polymer Science, 1993AbstractComposite propellants based on hydroxyl‐terminated polybutadience (HTPB) resin are the most common contemporary solid propellants for launch vehicle and missile applications. A series of HTPB resins, manufactured by free‐radical polymerisation using a peroxide initiator, with varying molecular weights and hydroxyl values, was used in propellant
R. Manjari +3 more
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Accelerated Aging Tests of HTPB-Based Propellants
2018In the late twentieth century, liquid and solid propulsion technologies have been integrated into hybrid engines currently apllied in propulsion launch vehicles and missiles. The reaction of polyol (HTPB) and diisocyanate (IPDI) provides the most versatile of the binders in the production of solid propellants due to its ability to withstand high loads ...
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Tensile Mechanical Properties of HTPB Propellant at Low Temperature
Key Engineering Materials, 2018To study the low temperature effects of tensile mechanical properties on Hydroxyl-terminated polybutadiene (HTPB) propellant, a quasi-static mechanical experiment was conducted. The results show that tensile mechanical parameters are closely related to strain rate and low temperature.
Xiang Dong Chen +5 more
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41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2005
Moshe Kivity +2 more
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Moshe Kivity +2 more
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