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低速冲击下蜂窝铝板的表面变形检测及其吸能特性研究
  • ISSN号：1001-4888
  • 期刊名称：实验力学
  • 时间：0
  • 页码：573-581
  • 分类：O347.3[理学—固体力学;理学—力学] U461.91[机械工程—车辆工程;交通运输工程—载运工具运用工程;交通运输工程—道路与铁道工程]
  • 作者机构：[1]清华大学航天航空学院工程力学系,北京100084
  • 相关基金：基金项目：本研究由国家自然科学基金（10972113,10732080）、国家重点基础研究发展计划（2007CB936803,2010CB631005）和高等学校博士学科点专项科研基金（20070003053）资助.
  • 相关项目：多探针集成纳米力学检测技术与系统研究
作者： 王刚|李喜德|
关键词： 蜂窝铝, 轴向冲击, 能量吸收, 三维形貌测量, honeycomb aluminium, axial impact, energy absorption, three-dimensional shape measure-
中文摘要：

铝质蜂窝结构由于其优良的物理和机械性能被广泛地应用于工程结构，因而对其力学性能的研究也成为越来越重要的课题。本文通过摆锤冲击实验，研究了蜂窝铝的动态压缩性能及低速冲击吸能特性。结果表明，在球形摆锤冲击下，蜂窝铝结构具有很好的冲击吸能特性，其变形特征与准静态变形类似。研究中通过高速摄像系统和加速度传感器记录摆锤的加速度衰减过程，通过投影光载波技术获得受冲击蜂窝铝板表面的压缩行为和三雏变形形貌。最后利用有限元方法进一步分析了蜂窝铝结构中内部损伤形式等实验中无法观测的现象，并对蜂窝铝结构参数对其吸能行为的影响进行了详细的讨论。

英文摘要：

Aluminium honeycomb structure is widely used in engineering due to its both physical and mechanical excellence. Thus, understanding its mechanical properties has become an increasingly important issue. The study of dynamic compression performance and energy absorption characteristics of aluminium honeycomb structure subjected to low-velocity impact was carried out based on pendulum impact test. Results show that the aluminium honeycomb structure has good impact energy absorbing characteristics, and its deformation behaviour is similar to quasi-static deformation under spherical pendulum impact. High-speed video camera and an acceleration sensor were used to record the acceleration attenuation of pendulum during experiments. A projection profile system was employed to obtain in situ three-dimensional topography of aluminium honeycomb structure subjected to impact deformation. Finally, the internal damage which is not observed in experiment was further analyzed by using finite element method, and the effect of honeycomb parameter on energy absorption was also discussed in detailocl

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期刊信息
  • 《实验力学》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国力学学会 中国科学技术大学
  • 主编：于起峰
  • 地址：安徽省合肥市金寨路96号中国科技大学
  • 邮编：230026
  • 邮箱：sylx@ustc.edu.cn
  • 电话：0551-3601246
  • 国际标准刊号：ISSN：1001-4888
  • 国内统一刊号：ISSN：34-1057/O3
  • 邮发代号:26-57
  • 获奖情况:
  • 国内外数据库收录:
  • 日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:6587