固体推进剂断裂与裂纹扩展研究进展  

Research Progress on Fracture and Crack Propagation of Solid Propellant

作　　者：刘瀚文 吕玺 付小龙[1] 王江宁[1] 石拉 孟赛钦 LIU Han-wen;LYU Xi;FU Xiao-long;WANG Jiang-ning;SHI La;MENG Sai-qin(Xi′an Modern Chemistry Research Institute,Xi′an 710065,China;Military Representative Bureau of Army Equipment in Xi′an,Xi′an 710032,China)

机构地区：[1]西安近代化学研究所,陕西西安710065 [2]陆装驻西安地区军事代表局,陕西西安710032

出　　处：《火炸药学报》2024年第10期857-869,I0001,共14页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金(No.21975150)。

摘　　要：为了研究固体推进剂的断裂性能和裂纹扩展机理,介绍了固体推进剂断裂及裂纹扩展的理论研究和常见数值仿真方法,指出扩展有限元法(XFEM)和内聚力模型(CZM)是模拟固体推进剂断裂最常见的数值仿真方法;总结了固体推进剂断裂特性的影响因素,对固体推进剂界面脱湿机理试验研究进行了综述。其中,相较于裂纹尺寸和加载速率,温度、老化和围压3种因素可以改变固体推进剂的裂纹扩展机理。最后对固体推进剂断裂的研究方向和发展趋势进行了展望,认为考虑热力耦合影响因素的动态断裂研究、燃烧环境下的断裂性能研究、实现动态加载下全过程的实时细观观测和数值仿真方法的更新是未来固体推进剂断裂与裂纹扩展研究的重点。附参考文献73篇。In order to study the fracture properties and crack propagation mechanism of solid propellant,the theoretical research and common numerical simulation methods for fracture and crack propagation in solid propellants were introduced.It is pointed out that the extended finite element method(XFEM)and cohesive zone models(CZM)are the most common techniques for fracture simulation of solid propellants.The influencing factors of fracture properties of solid propellant were summarized,and the experimental studies on the interfacial dehumidification mechanism of solid propellants are reviewed.Compared to crack size and loading rate,temperature,ageing and confining pressure can change the crack propagation mechanism of solid propellants.Finally,the research on solid propellant fracture was prospected.It was considered that the research on dynamic fracture considering the influence factors of thermodynamic coupling,fracture performance in combustion environment,real-time microscopic observation of the whole process under dynamic loading and the update of numerical simulation methods will be the focus of the future research on solid propellant fracture and crack propagation with 73 references.

关 键 词：材料力学 固体推进剂 断裂特性 裂纹扩展 数值仿真 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]