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聚四氟乙烯/铝/硅反应材料本构模型的研究

Research on the Constitutive Model of PTFE/Al/Si Reactive Material.

作者信息

Ding Liangliang, Cui Xiaoxiao, Tang Wenhui, Zhong Xue, Zhao Yuli, Huang Yongzheng, Shi Peng, Xue Xiaoguang

机构信息

Beijing Institute of Tracing Telecommunication Technology, Beijing 100028, China.

College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China.

出版信息

Polymers (Basel). 2022 Mar 27;14(7):1358. doi: 10.3390/polym14071358.

DOI:10.3390/polym14071358
PMID:35406234
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9003353/
Abstract

As a new type of energetic material, reactive materials are widely used at present; in particular, the metal/polymer mixtures type reactive materials show great advantages in engineering applications. This type of reactive material has good mechanical properties, and its overall performance is insensitive and high-energy under external impact loading. After a large number of previous studies, our team found that the energy release characteristics of PTFE/Al/Si reactive material are prominent. In order to master the mechanical properties of PTFE/Al/Si reactive materials, the quasi-static mechanical properties and dynamic mechanical properties were obtained by carrying out a quasi-static compression test and a dynamic SHPB test in this paper. Based on the experimental data, a Johnson-Cook constitutive model of PTFE/Al/Si reactive material considering strain hardening effect, strain rate hardening effect and thermal softening effect was constructed. The relevant research results will be used to guide future research on the reaction mechanism of PTFE/Al/Si reactive materials, in order to promote the engineering application of PTFE/Al/Si reactive materials.

摘要

作为一种新型含能材料，反应性材料目前得到了广泛应用；特别是金属/聚合物混合类型的反应性材料在工程应用中显示出巨大优势。这类反应性材料具有良好的力学性能，在外部冲击载荷作用下其整体性能不敏感且能量高。经过前期大量研究，我们团队发现PTFE/Al/Si反应性材料的能量释放特性突出。为掌握PTFE/Al/Si反应性材料的力学性能，本文通过开展准静态压缩试验和动态SHPB试验获得了其准静态力学性能和动态力学性能。基于试验数据，构建了考虑应变硬化效应、应变率硬化效应和热软化效应的PTFE/Al/Si反应性材料的Johnson-Cook本构模型。相关研究成果将用于指导未来对PTFE/Al/Si反应性材料反应机理的研究，以推动PTFE/Al/Si反应性材料的工程应用。

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