爆炸与冲击
爆炸與遲擊
폭작여충격
EXPLOSION AND SHOCK WAVES
2001年
1期
21-25
,共5页
彭常贤%谭红梅%胡泽根%林鹏%曹述生
彭常賢%譚紅梅%鬍澤根%林鵬%曹述生
팽상현%담홍매%호택근%림붕%조술생
脉冲电子束%结构响应%壳体%动态应变
脈遲電子束%結構響應%殼體%動態應變
맥충전자속%결구향응%각체%동태응변
在“闪光二号”电子束装置上,对材料或形状有异的两端固支的三种壳体进行了辐射结构响应的实验研究。实验采用在壳体内表面粘贴一个特制长引线应变片并组成直流桥路的测量原理。结果表明:当壳体受辐射方位角为0°~180°时,应变峰值随方位角的增大而减小;编织材料壳体中的应变峰值和热激波应力峰值都比硬铝壳体中的小;当电子束能注量为150~210J/cm2、壳体半径厚度比为13~18.5时,壳体变形处于弹塑性或全塑性状态。
在“閃光二號”電子束裝置上,對材料或形狀有異的兩耑固支的三種殼體進行瞭輻射結構響應的實驗研究。實驗採用在殼體內錶麵粘貼一箇特製長引線應變片併組成直流橋路的測量原理。結果錶明:噹殼體受輻射方位角為0°~180°時,應變峰值隨方位角的增大而減小;編織材料殼體中的應變峰值和熱激波應力峰值都比硬鋁殼體中的小;噹電子束能註量為150~210J/cm2、殼體半徑厚度比為13~18.5時,殼體變形處于彈塑性或全塑性狀態。
재“섬광이호”전자속장치상,대재료혹형상유이적량단고지적삼충각체진행료복사결구향응적실험연구。실험채용재각체내표면점첩일개특제장인선응변편병조성직류교로적측량원리。결과표명:당각체수복사방위각위0°~180°시,응변봉치수방위각적증대이감소;편직재료각체중적응변봉치화열격파응력봉치도비경려각체중적소;당전자속능주량위150~210J/cm2、각체반경후도비위13~18.5시,각체변형처우탄소성혹전소성상태。
Dynamic responses of three different shells irradiated by pulseelectron beams were studied experimentally on “FLASH-Ⅱ” .Direct-current bridge method was used to measure shell strain.Experimental results show that peak strain decreases with bearing angle increase from 0° to 180°.Peak strain and stress thermal shock wave in braid material shells are smaller than those in aluminum alloy shells.Shell deformation was elastic-plastic or plastic when electron beam energy changed from 150 to 210J/cm2 and the radius to thickness ratio of shells was from 13 to 18.5.