Compressive Behavior of TATB Grains inside TATB-Based PBX Revealed by In-Situ Neutron Diffraction

We investigate the （002） lattice strain evolution of triaminotrinitrobenzene （TATB） grains inside one TATB-based plastic bonded explosive （PBX） through the in-situ neutron diffraction. By comparing the untreated specimen with the thermal-treated one, it is found that the volume-average response of m...

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Published inChinese physics letters Vol. 34; no. 6; pp. 75 - 78
Main Author 田懿 王虹 张昌盛 田强 张伟斌 李洪佳 李建 刘本德 孙光爱 彭太平 徐尧 龚建
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LanguageEnglish
Published 01.06.2017
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Abstract We investigate the （002） lattice strain evolution of triaminotrinitrobenzene （TATB） grains inside one TATB-based plastic bonded explosive （PBX） through the in-situ neutron diffraction. By comparing the untreated specimen with the thermal-treated one, it is found that the volume-average response of measured TATB grains remains nearly elastic during quasi-static uniaxial compression. The observed changes in TATB （002） lattice strains correlate tightly with the evolution of damage. A damage parameter defined by the macroscopically determined residual strain is further used to describe the damage degree of PBX, which suggests that the compressive behavior of TATB-based PBX is significantly influenced bv the damage evolution.
AbstractList We investigate the （002） lattice strain evolution of triaminotrinitrobenzene （TATB） grains inside one TATB-based plastic bonded explosive （PBX） through the in-situ neutron diffraction. By comparing the untreated specimen with the thermal-treated one, it is found that the volume-average response of measured TATB grains remains nearly elastic during quasi-static uniaxial compression. The observed changes in TATB （002） lattice strains correlate tightly with the evolution of damage. A damage parameter defined by the macroscopically determined residual strain is further used to describe the damage degree of PBX, which suggests that the compressive behavior of TATB-based PBX is significantly influenced bv the damage evolution.
Author 田懿 王虹 张昌盛 田强 张伟斌 李洪佳 李建 刘本德 孙光爱 彭太平 徐尧 龚建
AuthorAffiliation Key Laboratory for Neutron Physics of Chinese Academy of Engineering Physics, Institute of Nuclear Physics and Chemistry, Mianyang 621900 Institute of Chemical Materials, Mianyang 621900
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Cites_doi 10.1016/j.jhazmat.2010.04.120
10.1007/s10853-005-3148-4
10.1016/j.jmps.2005.01.009
10.1098/rspa.2001.0894
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10.1016/j.nima.2015.02.026
10.1016/j.jmps.2011.03.012
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Notes Yi Tian1, Hong Wang1 ,Chang-Sheng Zhang1, Qiang Tian 1 , Wei-Bin Zhang2, Hong-Jia Li1, Jian Li1, Ben-De Liu2, Guang-Ai Sun1, Tai-Ping Peng1, Yao Xu2, Jian Gong1（ 1 Key Laboratory for Neutron Physics of Chinese Academy of Engineering Physics, Institute of Nuclear Physics and Chemistry, Mianyang 621900 2Institute of Chemical Materials, Mianyang 621900）
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We investigate the （002） lattice strain evolution of triaminotrinitrobenzene （TATB） grains inside one TATB-based plastic bonded explosive （PBX） through the in-situ neutron diffraction. By comparing the untreated specimen with the thermal-treated one, it is found that the volume-average response of measured TATB grains remains nearly elastic during quasi-static uniaxial compression. The observed changes in TATB （002） lattice strains correlate tightly with the evolution of damage. A damage parameter defined by the macroscopically determined residual strain is further used to describe the damage degree of PBX, which suggests that the compressive behavior of TATB-based PBX is significantly influenced bv the damage evolution.
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