TY - JOUR
T1 - GAP/PET/RDX基推进剂的动态冲击及点火响应行为
AU - Fan, Ying Nan
AU - Wu, Yi
AU - Wen, Jun Jie
AU - Wang, Yu
AU - Yang, Zheng Hui
AU - Wu, Ying Chun
AU - Li, Hai Tao
AU - Hou, Xiao
N1 - Publisher Copyright:
© 2023 China Ordnance Industry Corporation. All rights reserved.
PY - 2023
Y1 - 2023
N2 - For glycidyl azide polymer (GAP) propellant and polyethylene terephthalate (PET) propellant with different cyclot-rimethylenetrinitramine (RDX) particle size, a split Hopkinson pressure bar (SHPB) apparatus was used to carry out high-strain rate (1 000-6000s-1) dynamic impact experiments, combining the optical measurement technology of high-speed photography with digital holography, three high-speed cameras were simultaneous used to synchronously observe the generation of damage, ignition response and energy growth process of various propellants under impact conditions. It was found that the ultimate strength of GAP-based propellant under high-strain rate compression is twice that of PET-based propellant,and the elastic modulus is more than doubled at different strain rates. Compared with coarse-grained RDX propellant, the ultimate strength of medium-grained RDX propellant is increased by 80%,and the elastic modulus is increased by 148% . In addition, compared with PET-based propellant and medium RDX particle size propellant, GAP-based propellant and coarse RDX particle size propellant are easier to ignite and burn under high-strain rate compression conditions. However, the reaction of medium RDX particle size propellant is more intense and complete.
AB - For glycidyl azide polymer (GAP) propellant and polyethylene terephthalate (PET) propellant with different cyclot-rimethylenetrinitramine (RDX) particle size, a split Hopkinson pressure bar (SHPB) apparatus was used to carry out high-strain rate (1 000-6000s-1) dynamic impact experiments, combining the optical measurement technology of high-speed photography with digital holography, three high-speed cameras were simultaneous used to synchronously observe the generation of damage, ignition response and energy growth process of various propellants under impact conditions. It was found that the ultimate strength of GAP-based propellant under high-strain rate compression is twice that of PET-based propellant,and the elastic modulus is more than doubled at different strain rates. Compared with coarse-grained RDX propellant, the ultimate strength of medium-grained RDX propellant is increased by 80%,and the elastic modulus is increased by 148% . In addition, compared with PET-based propellant and medium RDX particle size propellant, GAP-based propellant and coarse RDX particle size propellant are easier to ignite and burn under high-strain rate compression conditions. However, the reaction of medium RDX particle size propellant is more intense and complete.
KW - GAP-based propellant
KW - PET-based propellant
KW - RDX particle size
KW - dynamic mechanical property
KW - high-energy propellants
KW - ignition response behavior
KW - low velocity impact
KW - mechanics of material
UR - http://www.scopus.com/inward/record.url?scp=85160207605&partnerID=8YFLogxK
U2 - 10.14077/j.issn.1007-7812.202210017
DO - 10.14077/j.issn.1007-7812.202210017
M3 - 文章
AN - SCOPUS:85160207605
SN - 1007-7812
VL - 46
SP - 335
EP - 344
JO - Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
JF - Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
IS - 4
ER -