R. Critchley, R. Hazael, K. Bhatti, D. Wood, A. Peare, Steve Johnson, T. Temple
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引用次数: 7
摘要
保护城市环境中的关键基础设施是一项具有挑战性的任务,特别是针对车载简易爆炸装置的威胁。为了设计能够抵御这种不断变化的威胁的基础设施,需要开发新的解决方案和先进的材料。其中一种有趣的材料是助生剂。本研究利用增材制造(3D打印)技术和通过激波管进行非爆炸加载,实验分析了几何形状在- ve 30°和+ve 30°之间变化的消声再入蜂窝结构的爆炸响应缓解。重新进入的辅助结构(- ve 15°)显示出23%的可重复爆炸缓解,并降低了冲击波的传递压力和脉冲。进一步强调了其作为提高建筑物爆炸生存能力的保护措施的潜在应用。
Blast mitigation using polymeric 3D printed auxetic re-entrant honeycomb structures: A preliminary study
Protection of critical infrastructure in an urban environment is a challenging task, specifically against the vehicle bourne improvised explosive device threat. To design infrastructure to withstand this evolving threat, novel solutions and advanced materials need to be developed. One such material of interest are auxetics. This study experimentally analysed the mitigation of blast response of auxetic re-entrant honeycomb structures, with geometries varying between −ve 30° and +ve 30° using additive manufacturing (3D printing) techniques and non-explosive loading via shock tube. Re-entrant auxetic structures (−ve 15°) exhibited repeatable blast mitigation of 23% and reduced the transmitted pressure and impulse of the blast wave. Further highlighting their potential application as a protective measure to enhance a structures blast survivability.