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

被引：4

作者：

Tian, Yi ^{[1
]}

Wang, Hong ^{[1
]}

Zhang, Chang-Sheng ^{[1
]}

Tian, Qiang ^{[1
]}

Zhang, Wei-Bin ^{[2
]}

Li, Hong-Jia ^{[1
]}

Li, Jian ^{[1
]}

Liu, Ben-De ^{[2
]}

Sun, Guang-Ai ^{[1
]}

Peng, Tai-Ping ^{[1
]}

Xu, Yao ^{[2
]}

Gong, Jian ^{[1
]}

机构：

[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Key Lab Neutron Phys, Mianyang 621900, Peoples R China

[2] Inst Chem Mat, Mianyang 621900, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2017年 / 34卷 / 06期

基金：

中国国家自然科学基金;

关键词：

POLYMER BONDED EXPLOSIVES; DIGITAL IMAGE CORRELATION; UNIAXIAL COMPRESSION; DAMAGE; DEFORMATION; FAILURE;

D O I：

10.1088/0256-307X/34/6/066101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 by the damage evolution.

引用

页数：4

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