高聚物粘结炸药模压成型的数值模拟研究进展  

Research Progress in Numerical Simulation of PBX Molding

作　　者：何东坡 温彤[1] 游国强[1] 刘锋 黄求安 史慧芳 He Dongpo;Wen Tong;You Guoqiang;Liu Feng;Huang Qiuan;Shi Huifang(College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;Department of Intelligent Manufacture,China Ordnance Equipment Group Automation Research Institute Co.,Ltd.,Mianyang 621000,China)

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]中国兵器装备集团自动化研究所有限公司智能制造事业部,四川绵阳621000

出　　处：《兵工自动化》2024年第8期71-79,共9页Ordnance Industry Automation

摘　　要：为给高聚物粘结炸药(polymer bonded Explosive,PBX)实际生产工艺参数制定和品质调控提供精确指导,梳理基于连续介质假设和微粒学观点2种方法的PBX压制成型数值模拟研究进展,介绍炸药晶体颗粒与粘结剂的物性模型、微结构损伤表征与演化,以及PBX在机械载荷作用下力学行为的相关理论;从PBX的材料特性以及散粒组合复合材料的特殊几何结构等角度,分析PBX压制理论研究的难点,提出基于统计学概念的PBX压制变形与损伤分析的设想。结果表明:数值模拟可克服物理实验的限制,从而得到PBX在热-力耦合作用下的重要信息。In order to provide accurate guidance for the formulation of actual production process parameters and quality control of polymer bonded explosive(PBX),the research progress of numerical simulation of PBX compression molding based on the continuum hypothesis and the perspective of microparticle science is combed,and the physical property model,microstructure damage characterization and evolution of explosive crystal particles and binders,and the related theories of the mechanical behavior of PBX under mechanical load are introduced.From the perspectives of PBX material characteristics and the special geometric structure of bulk composite composites,the difficulties of PBX compression theory research are analyzed,and the idea of PBX compression deformation and damage analysis based on statistical concept is proposed.The results show that numerical simulation can overcome the limitations of physical experiments,so as to obtain important information of PBX under the action of thermo-mechanical coupling.

关 键 词：高聚物粘结炸药 模压成型 数值模拟 有限元 离散元 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]