火炸药学报Issue(5)：51-53,59,4.DOI:10.14077/j.issn.1007-7812.2015.05.010
含预制缺陷 PBX 炸药的力学性能及破坏形式
Mechanical Properties and Failure Modes of PBX Explosives with Different Prefabricated Defects
摘要
Abstract
To explore the effects of crack defects on the mechanical properties and failure modes of explosives,using HMX based PBX pressed explosive as the object,the failure process of the explosive under the conditions of different prefabricated defects was studied by an improved arc Brazilian test,and the obtained test results were compared with those of explosives without defects.Results show that within the scope of the study,the mechanical strength of HMX based PBX pressed explosive is significantly changed by the spatial position of defects,and the highest decreasing range reaches up to 75.3%.The failure modes are obviously different under different defects and the phenomenon of second bearing exists when the defect exist angle with loading direction and the crack extends from the end of defect to the loading surface.关键词
材料科学/PBX 炸药/巴西试验/拉伸强度/预制缺陷/断裂破坏Key words
material science/PBX explosive/Brazilian test/tensile strength/prefabricated defects/fracture failure分类
军事科技引用本文复制引用
陈科全,蓝林钢,路中华,胡榕希..含预制缺陷 PBX 炸药的力学性能及破坏形式[J].火炸药学报,2015,(5):51-53,59,4.基金项目
中物院青年人才培养基金（QNRC－201312）；中物院学科发展基金 （）
