电磁胀环实验技术研究进展  

Research Progress of Electromagnetic Ring Expansion Experimental Technique

作　　者：马慧娟 崔旭华 孙倩 胡志力[3] 黄亮[4] 张茂[4] 李建军[4] MA Hui-juan;CUI Xu-hua;SUN Qian;HU Zhi-li;HUANG Liang;ZHANG Mao;LI Jian-jun(Hubei Key Laboratory of Advanced Technology for Automotive Components,School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Collaborative Innovation Center for Automotive Components Technology,School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Research Center for New Energy&Intelligent Connected Vehicle,School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Materials Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]武汉理工大学汽车工程学院现代汽车零部件技术湖北省重点实验室,武汉430070 [2]武汉理工大学汽车工程学院汽车零部件技术湖北省协同创新中心,武汉430070 [3]武汉理工大学汽车工程学院湖北省新能源与智能网联车工程技术研究中心,武汉430070 [4]华中科技大学材料科学与工程学院材料成形与模具技术国家重点实验室,武汉430074

出　　处：《精密成形工程》2021年第5期30-42,共13页Journal of Netshape Forming Engineering

基　　金：国家自然科学基金(51905395,51805393);湖北省自然科学基金(2020CFB550);国家重点研发计划(2019YFB1704505);新能源汽车科学与关键技术学科创新引智基地(B17034);教育部创新团队发展计划(IRT_17R83);材料成形与模具技术国家重点实验室开放基金(P2019-10,P2020-017);中央高校基本科研业务费专项资金(2020IVB021,2019IVA026)。

摘　　要：电磁胀环技术是一种利用强脉冲洛伦兹力驱动材料产生高速率变形的实验方法,应变速率在数百微秒内可达到10^(4) s^(−1)以上,可实现材料高速率一维拉伸均匀受力状态,因此被广泛用于研究高应变速率加载条件下材料的力学性能、颈缩碎裂特征。简要回顾了电磁胀环实验的发展历史,并从材料动态力学性能测试、动态碎裂统计分布和高温绝热性能3个方面论述了电磁胀环测试技术的研究进展,总结了电磁胀环实验在计算机模拟和实验装置设计方面的研究现状,为测试材料高应变速率下的响应特性、探索材料动态碎裂机制、评估材料高温绝热性能及建立精确动态测试实验模型等方面的深入研究提供指导。该技术在航空航天及车载兵工领域中,高速率加载或者冲击加载条件下材料服役性能的测试分析方面,具有广阔的应用前景。The electromagnetic ring expansion technique is an experimental method that uses strong pulsed Lorentz force to deform materials at high strain rates.The experiment can reach the strain rate above 10^(4) s^(−1) in hundreds of microseconds,which is a kind of high-speed deformation experiment with uniform one-dimensional tensile loading.Therefore,electromagnetic ring expansion experiment is widely used to study the mechanical properties and fracture characteristics of materials under high strain rate loading conditions.In this paper,the development history of electromagnetic ring expansion technique is briefly reviewed,and the research progress is discussed from three aspects of dynamic mechanical properties,dynamic fragmentation statistical distribution and high temperature adiabatic properties for different materials.In addition,the current research status of electromagnetic ring expansion experiment in computer simulation and experimental device design is summarized.The guidance for further research in testing the dynamic response characteristics of materials,exploring the dynamic fragmentation mechanisms,evaluating the high-temperature adiabatic thermal properties,and establishing accurate dynamic testing experimental models is provided in this paper.The electromagnetic ring expansion technique has broad application prospects for testing and analyzing the service property of materials under high-speed loading or impact loading in the fields of aerospace,vehicles and ordnance industries.

关 键 词：电磁胀环 高应变速率 动态力学性能 动态碎裂 

分 类 号：TG391[金属学及工艺—金属压力加工]