火炸药学报2025，Vol.48Issue(12)：1143-1153,11.DOI:10.14077/j.issn.1007-7812.202506016
短切纤维对Al/PTFE-RDX组合装药力学行为和爆炸性能的影响
Effects of Short-cut Fibers on the Mechanical Behaviors and Explosive Properties of Al/PTFE-RDX Composite Charges
摘要
Abstract
To investigate the effects of short-cut fibers on the mechanical properties and explosive characteristics of the com-posite charges,the reinforced Al/PTFE reactive materials ring containing short-cut fibers were prepared and formed into a com-posite charge with RDX pillars.The mechanical behaviors of the reactive materials rings containing the different kinds of short-cut fibers were systematically investigated using the universal testing material machine and the split Hopkinson pressure bar(SHPB)system.The effects of the different short-cut fibers on the quasi-static pressure of composite charge,shock wave pa-rameters and the characteristic parameters of exploding fireball,which were conducted using the free-field explosion test sys-tem,the spherical explosion container test system and the colorimetric temperature measurement techniques.The results show that the short-cut fibers significantly improve the mechanical properties of the Al/PTFE reactive materials ring.And the Al/PTFE reactive materials ring containing short-cut titanium fibers exhibits the compressive strength 6.12MPa and the impact strength of 15.433 MPa,respectively,representing the increases of 134.8％and 93.1％compared to fiber-free Al/PTFE reactive ma-terials ring,which exhibits the most excellent compressive properties and impact resistance capability.The peak pressure of the shock wave of the composite charges containing short-cut titanium fibers is 37.68kPa,with positive interaction time of 695.34μs,a positive impulse of 12.34Pa·s,a quasi-static pressure of 58.21 kPa,an average maximum fireball temperature of 2 734K,and a fireball duration of 1 375.64μs.Compared with the composite charges without short-cut fibers,the parame-ters aboveare increased by 19.1％,5.8％,25.0％,70.1％,3.9％and 51.6％respectively.The short-cut titanium fibers has the most significant improvement on the explosion performance of the composite charges.The short-cut titanium fibers show promising potential for improving the mechanical properties and explosive power of the composite charges.关键词
爆炸力学/短切纤维/活性材料/组合装药/纤维增强/后燃反应/PTFE/金属-氟聚物Key words
explosion mechanics/short-cut fibers/reactive materials/composite charge/fiber reinforcement/after-burning reaction/PTFE/MFPs分类
军事科技引用本文复制引用
朱守军,程扬帆,张启威,朱容康,陈子涵..短切纤维对Al/PTFE-RDX组合装药力学行为和爆炸性能的影响[J].火炸药学报,2025,48(12):1143-1153,11.基金项目
安徽省高校自然科学基金杰青项目(No.2023AH020026) （No.2023AH020026）
国家自然科学基金(No.12272001) （No.12272001）
安徽理工大学研究生创新基金(No.2024cx1004) （No.2024cx1004）
