强冲击下金属材料动态损伤与破坏的分子动力学模拟研究进展  

Research Progress on Dynamic Damage and Failure of Metal Materials under Shock Loading with Molecular Dynamics Simulation

作　　者：王嘉楠 伍鲍 何安民[2] 吴凤超 王裴[2] 吴恒安[1] WANG Jianan;WU Bao;HE Anmin;WU Fengchao;WANG Pei;WU Heng’an(CAS Key Laboratory of Mechanical Behavior and Design of Materials,Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,Anhui,China;Institute of Applied Physics and Computational Mathematics,Beijing 100094,China;Institute of Fluid Physics,CAEP,Mianyang 621999,Sichuan,China)

机构地区：[1]中国科学技术大学近代力学系,中国科学院材料力学行为和设计重点实验室,安徽合肥230027 [2]北京应用物理与计算数学研究所,北京100094 [3]中国工程物理研究院流体物理研究所,四川绵阳621999

出　　处：《高压物理学报》2021年第4期1-14,共14页Chinese Journal of High Pressure Physics

基　　金：科学挑战专题(TZ2016001)。

摘　　要：强冲击下金属材料的动力学过程及其内在的机理分析一直是冲击物理的前沿,无论是在国家基础工程还是尖端武器研制中都具有重要的意义与价值。结合课题组的相关工作,综述了国内外冲击物理领域对金属材料在强冲击作用下动态损伤和破坏行为及其机理等问题的研究进展,重点讨论了金属材料内部及表界面微观结构对损伤破坏机制的影响,介绍了复杂加载条件下材料行为研究的机遇与挑战,并展望了下一步研究工作的重点。The dynamic process and internal mechanism of metal materials under shock loading have always been focused on shock physics fields,which are of great importance in both national basic engineering and development of cutting-edge weapons.Recent research progress of mechanical behavior and mechanics of metal materials loaded by shock wave based on our previous study is reviewed in this paper.We focus on the influence of internal and surface interface microstructure of metal materials on the mechanics of damage and failure processes and introduce the opportunities and challenges of material behavior under complex loading conditions.Finally,direction and key point of future work were discussed.

关 键 词：强冲击 动力学损伤破坏 层裂 微喷射 复杂加载 分子动力学 

分 类 号：O347.3[理学—固体力学]