火薬の新素材で安全な輸送・保管を実現 New explosives materials ensure safe transport and storage
2023-03-18 ロスアラモス国立研究所(LANL)
この技術により、高感度な爆薬を取り扱う軍事プランナーや、鉱業や弾薬に関連する地域社会、兵器を扱う人々にとって、安全性が向上することが期待されている。さらに、異なる充填構造や充填流体における性能評価の実験とデータ収集により、爆破や軍事、鉱業、油田探査、石切りなどの分野で、スイッチ可能な爆薬の可能性が浮かび上がる。
＜関連情報＞
スイッチング可能な爆発物：流体活性化高火薬アーキテクチャの性能チューニング Switchable Explosives: Performance Tuning of Fluid-Activated High Explosive Architectures
Cameron B. Brown, Alexander H. Mueller, Seetharaman Sridhar, Joseph P. Lichthardt, Andrew M. Schmalzer, Bryce C. Tappan, Von H. Whitley, Larry G. Hill, Eduardo Lozano, and Tariq D. Aslam
Physical Review Letters Published: 17 March 2023
DOI:https://doi.org/10.1103/PhysRevLett.130.116105
ABSTRACT
We present our discovery of switchable high explosives (HEs) as a new class of energetic material that cannot detonate unless filled with a fluid. The performance of fluid-filled additive-manufactured HE lattices is herein evaluated by analysis of detonation velocity and Gurney energy. The Gurney energy of the unfilled lattice was 98% lower than that of the equivalent water-filled lattice and changing the fluid mechanical properties allowed tuning of the Gurney energy and detonation velocity by 8.5% and 13.4%, respectively. These results provide, for the first time since the development of HEs, a method to completely remove the hazard of unplanned detonations during storage and transport.
