弹体动态响应试验研究在落锤冲击载荷下

杨亚东1，华绍春2，熊国松1，刘俞平1，王　宇3，袁利东1

（1.重庆红宇精密工业有限责任公司，重庆　402760；2.火箭军驻重庆地区军事代表室，重庆　400039；3.中北大学电子测试技术国家重点实验室，山西　太原　030051）

摘　要：为了研究弹体遭受冲击载荷作用下壳体的破裂条件，以量纲理论推导了落锤试验弹体应变响应的数学理论模型，基于落锤冲击试验弹体的应变数据，拟合得到了侧向和头部撞击作用下弹体的破裂应变函数，得到了所提方案弹体的临界破裂条件，侧向撞击时弹体临界应变阈值为0.005 8，头部撞击时弹体临界应变阈值为0.075。结果表明，该方法能够为弹体结构设计和壳体破裂条件研究提供数据支持，也为相似工程应用提供参考依据。

关键词：兵器科学与技术；落锤冲击；动态响应；破裂条件；试验研究

中图分类号：O383+.3　文献标识码：A

作者简介：杨亚东（1979—），男，博士，高级工程师，E-mail：547988827＠qq.com。(www.xing528.com)

Experimental study on dynamic response of projectile under drop-weight impact tests

YANG Yadong1，HUA Shaochun2，XIONG Guosong1，LIU Yuping1，WANG Yu3，YUAN Lidong1

（1.Chongqing Hongyu Precision Industrial CO.，Ltd，Chongqing 402760，China；2.Rocket force's military chamber in southwest china，Chongqing 400039，China；3.National Key Laboratory for Electronic Measurement Technology，North University of China，Taiyuan 030051，China）

Abstract：In order to investigate the condition of shell rupture under impact load，the mathematical model of projectile strain response in drop-weight tests is deduced by dimension theory.Based on the strain data in test，the fracture strain function of projectile under lateral and head impact is fitted and the critical fracture condition of projectile is further obtained，showing the critical strain threshold is 0.005 8 under lateral impact and 0.075 under head impact.The results indicate that the method can provide data support for the design of projectile struc⁃ture as well as the study of projectile fracture condition，and can also provide reference for similar engineering applications.

Key words：ordnance science and technology；drop-weight impact；dynamic response；fracture condition；experiment study