Design and Dynamic Experiment of Al-Cu Graded Materials Impactor with Strain Rate of 10^(4)–10^(5)/s  

加载应变率为10^(4)‒10^(5)/s的Al-Cu梯度飞片材料的设计与动态实验

作　　者：Hu Jianian Zhou Zizheng Li Yidi Chen Xiang Yang Gang Liu Jintao Zhang Jian 胡家念;周子正;李一迪;陈翔;杨刚;刘金涛;张建(江汉大学精细爆破国家重点实验室,湖北武汉430056;江汉大学爆破工程湖北省重点实验室,湖北武汉430056;中国船舶集团有限公司第七二五研究所,河南洛阳471023;武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070)

机构地区：[1]State Key Laboratory of Precision Blasting,Jianghan University,Wuhan 430056,China [2]Hubei Key Laboratory of Blasting Engineering,Jianghan University,Wuhan 430056,China [3]Luoyang Ship Material Research Institute,Luoyang 471023,China [4]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China

出　　处：《稀有金属材料与工程》2025年第3期581-586,共6页Rare Metal Materials and Engineering

基　　金：Natural Science Foundation of Hubei Province(2024AFB432);National Natural Science Foundation of China(52171045,12302436,52302095);Research Fund of Jianghan University(2023JCYJ05)。

摘　　要：Based on simplified calculations of one-dimensional wave systems,loading pressure platform curves of Al-Cu gradient materials(GMs)impactor were designed.The Al-Cu GMs were prepared using tape-pressing sintering,and their acoustic properties were characterized to match the design path.The parallelism of the Al-Cu GM was confirmed using a three-dimensional surface profilometry machine.A one-stage light-gas gun was used to launch the Al-Cu GM,impacting an Al-LiF target at a velocity of 400 m/s.The results of the experimental strain rate demonstrate that the Al-Cu GMs can realize the precise control of the strain rate within the range of 10^(4)‒10^(5)/s in the high-speed impact experiments.基于梯度材料一维波系作用的简化算法设计了Al-Cu梯度飞片材料的加载压力曲线。通过热压法制备相应的Al-Cu梯度材料,其表征后的阻抗性能与设计路径相匹配。采用三维表面轮廓仪检测Al-Cu梯度材料的平行度,并利用一级气炮以400 m/s的速度发射Al-Cu梯度材料冲击Al-LiF靶材。该实验应变率的结果证明了Al-Cu梯度材料能够实现高速冲击实验中应变速率在10^(4)–10^(5)/s范围的精确控制。

关 键 词：high strain rate Al-Cu graded materials IMPACTOR acoustic impedance gas gun experiment 

分 类 号：O347.3[理学—固体力学]