Results 1 to 10 of about 402 (183)
Effect of Mechanical Heterogeneity on the Structural Integrity of HTPB Propellant Grain [PDF]
Materials, 2023 To investigate the structural effects of the mechanical heterogeneity of Hydroxyl-terminated polybutadiene (HTPB) propellant grain under ignition pressurization, a gradient finite element method was proposed to evaluate its structural integrity. The heterogeneous mechanical properties of the propellant grain were constructed and assessed.
Xiangyang Liu, Dongmo Zhou
exaly +4 more sources
Compressive mechanical properties of HTPB propellant at low temperatures and high strain rates
Results in Physics, 2017 To study the compressive mechanical properties of the hydroxyl-terminated polybutadiene (HTPB) propellant at high strain rates (700–1900/s) and low temperatures (−50 °C to 25 °C), we conducted a dynamic mechanical experiment using cylindrical specimens ...
Xiangdong Chen +5 more
exaly +3 more sources
Study on Creep Mechanical Properties of HTPB Solid Propellant. [PDF]
Materials (Basel)Solid rocket propellants based on hydroxyl-terminated polybutadiene (HTPB), in which HTPB acts as the polymeric binder and fuel matrix, are widely used in aerospace propulsion. During storage, transport, and service, these composite energetic materials are exposed to sustained mechanical loads as well as environmental variations, which may induce time ...
Jin L, Jia S, Zhang Z, An Z, Lu Z.
europepmc +2 more sources
Synthesis of propellant grade HHTPB by hydrogenation of HTPB using Pd-activated charcoal as catalyst
FirePhysChemTo derive more performance from the conventional composite propellant based on hydroxyl-terminated polybutadiene (HTPB) and ammonium perchlorate (AP), it is envisaged to hydrogenate HTPB, which increases the H/C (hydrogen to carbon ratio) of the base ...
Prasad Chdv +2 more
exaly +3 more sources
Xibei Gongye Daxue Xuebao, 2022 Aiming at the structural response characteristics of solid rocket motor (SRM) under vertical storage conditions, the creep tests of HTPB propellant under different stress levels were carried out, and the creep constitutive model of the propellant was ...
CHEN Ke +4 more
doaj +1 more source
Mechanical properties of thermal aged HTPB composite solid propellant under confining pressure
Defence Technology, 2022 With the purpose of investigating the effects of confining pressure and aging on the mechanical properties of Hydroxyl-terminated polybutadiene (HTPB) based composite solid propellant, tensile tests of thermal accelerated aged propellant samples under ...
Zhe-jun Wang, Hong-fu Qiang
doaj +1 more source
Crystals, 2023 The safety of solid rocket engine use seriously affects the survivability and combat effectiveness of weaponries. To study the engine safety against fragment in complex battlefield environments, the fragment impact safety simulation study of a high ...
Zheng Liu +6 more
doaj +1 more source
Polymer Testing, 2023 In order to study the macroscopic mechanical properties and meso damage mechanism of solid fuel hydroxy-terminated polybutadiene (HTPB) propellant under low temperature and dynamic biaxial compression loading, the INSTRON high strain rate hydraulic ...
Tingjing Geng +5 more
doaj +1 more source
Biaxial compression mechanical properties of HTPB propellant under dynamic loading
AIP Advances, 2022 To study the biaxial compression mechanical properties of hydroxyl-terminated polybutadiene (HTPB) solid propellants under dynamic loading, biaxial compression tests were carried out at room temperature (25 °C) with the strain rate ranging from 1 to 85 s−
Tingjing Geng +4 more
doaj +1 more source
FirePhysChem, 2022 This investigation was devoted to exploring the thermal decomposition and sensitivity characteristics of solid propellants using nano-AN and nano-AP as oxidizers.
Xiaolan Song +6 more
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