全部

力学与实践 ›› 2015, Vol. 37 ›› Issue (1): 1-24,48.doi: 10.6052/1000-0879-14-180

• 专题综述 • 上一篇    下一篇

多孔金属及其夹芯结构力学性能的研究进展

敬霖1, 王志华2, 赵隆茂2   

  1. 1. 西南交通大学牵引动力国家重点实验室, 成都 610031;
    2. 太原理工大学应用力学与生物医学工程研究所, 太原 030024
  • 收稿日期:2014-05-06 出版日期:2015-02-15 发布日期:2015-02-14
  • 通讯作者: 敬霖,博士,副研究员,现主要从事轻质材料与结构的力学行为研究. E-mail:jinglin_426@163.com, jinglin@home.swjtu.edu.cn E-mail:jinglin_426@163.com,jinglin@home.swjtu.edu.cn
  • 基金资助:

    国家自然科学基金项目(11402216)和牵引动力国家重点实验室自主研究课题(2014TPL_T09)资助.

ADVANCES IN STUDIES OF THE MECHANICAL PERFORMANCE OF CELLULAR METALS AND RELATED SANDWICH STRUCTURES

JING Lin1, WANG Zhihua2, ZHAO Longmao2   

  1. 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China;
    2. Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2014-05-06 Online:2015-02-15 Published:2015-02-14

摘要:

高孔隙率多孔金属及其夹芯复合结构是一种物理功能与结构一体化的新型、轻质高强材料/结构,具有高比强度、高比刚度和优良的吸能和缓冲性能等多种功能,引起了学术界和工程界众多研究者的极大关注. 本文概述了轻质多孔金属及其夹芯结构的制备方法、多功能特性及其应用,介绍了多孔金属夹芯结构元件(梁、板、壳)遭受准静态和动态冲击载荷下的理论、实验和模拟方面的国内外研究现状,分析和讨论了多孔金属及其夹芯结构力学行为研究中的研究手段和基本问题,重点关注了多孔金属夹芯结构的变形/失效、动态响应和能量吸收.

关键词:

多孔金属|夹芯结构|塑性动力响应|能量吸收|冲击载荷

Abstract:

The high-porosity cellular metals and the related sandwich structures are a new type of light-weight structural and functional material/structure. They are attractive for their high specific strength, high specific stiffness and excellent energy absorption capability. This paper reviews various processing techniques, the mechanical performance and the application fields of the sandwich structures with cellular metal cores. The mechanical behavior of metallic sandwich structures, including beams, plates and shells, subjected to quasistatic and dynamic loads is discussed, including theoretical predictions, numerical simulations and experimental results. The discussion also includes the deformation/failure, the dynamic response and the energy absorption of sandwich structures.

Key words:

cellular metals|sandwich structures|plastic dynamic response|energy absorption|impact loading

中图分类号: 

  • O34