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Enhancement of Creep Properties of TATB‐Based Polymer‐Bonded Explosive Using Styrene Copolymer
Author(s) -
Lin Congmei,
Liu Jiahui,
Huang Zhong,
Gong Feiyan,
Li Yubin,
Pan Liping,
Zhang Jianhu,
Liu Shijun
Publication year - 2015
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201400203
Subject(s) - creep , materials science , copolymer , composite material , tatb , explosive material , polymer , glass transition , chemistry , organic chemistry , detonation
In order to investigate the effects of binder component on the creep properties of polymer‐bonded explosive (PBX), three‐point bending creep behaviors of 1,3,5‐triamino‐2,4,6‐trinitrobenzene (TATB)‐based PBX and its styrene copolymer modified formulation were studied by dynamic mechanical analyzer. The experimental results showed that owing to the addition of reinforcing agent (styrene copolymer) with high glass transition temperature and high mechanical strength, the creep resistance performance of the modified formulation was improved with reduced creep strain and constant creep rate and prolonged creep failure time. A six‐element mechanical model was applied to simulate the creep behaviors of TATB‐based PBX and its modified formulation. The constitutive equation of creep curves under different conditions were obtained by nonlinear fit. The predicted theoretical results coincided quite well with the experimental data.