火炸药学报2025，Vol.48Issue(12)：1134-1142,9.DOI:10.14077/j.issn.1007-7812.202506014
光敏炸药驱动飞片实验技术研究
Research on Experimental Technology of Light Initiated High Explosive Driven Flyers
摘要
Abstract
To achieve high-fidelity simulation of the equivalent pressure pulse generated by intense pulsed X-ray thermo-me-chanical effects,and to overcome the limitations of existing photosensitive explosives imulation techniques,which character-ized by low peak pressure and excessively long pulse width,an experimental technology for driving flyers using photosensitive explosive was developed.Based on the Gurney model hypothesis,a simplified predictive model was established that correlates the areal density of the photosensitive explosive with flyer velocity.A specialized experimental apparatus was designed,and tests were conducted to launch 20 mm in diameter,0.15 mm in thick aluminum flyers.The velocity process of the flyers under different areal densities(ranging from 8.01 to 23.14mg/cm2)were measured by using photonic doppler velocimetry(PDV).To assess loading synchronization,additional experiments were performed with 40mm in diameter flyers,incorporating four PDV measurement points on the flyers' loading surface.The results demonstrate that a strong agreement between the measured maximum flyer velocities(100.1 m/s to 260.6m/s)and the model-predicted values,the maximum relative deviation is only 4.5％,validating the accuracy of the predictive model.The synchronization tests revealed highly consistent velocity curves across all measurement points,with the maximum temporal asynchrony of merely 0.45μs,confirming the excellent loading synchronization capability of the developed technique.This study preliminarily verifies the feasibility of the photosensitive ex-plosive driven flyer technology.关键词
爆炸力学/X射线热-力学效应/光敏炸药/格尼模型/面密度/飞片速度Key words
explosion mechanics/X-ray thermo-mechanical effects/light initiated high explosive/Gurney model/areal densi-ty/flyer velocity分类
军事科技引用本文复制引用
徐畅,董鹏举,随亚光,张德志,杨军,姜万春,仵可,陈博,徐海斌..光敏炸药驱动飞片实验技术研究[J].火炸药学报,2025,48(12):1134-1142,9.基金项目
国家自然科学基金(No.11872318) （No.11872318）
