首页> 外文会议>International Conference on Materials and Products Manufacturing Technology >Features of meso-deformation and failure of aluminum foam under impact
【24h】

Features of meso-deformation and failure of aluminum foam under impact

机译:影响下铝泡沫的中学变形和失效的特征

获取原文

摘要

Deformation and failure of meso-structures take great effect on the loading and energy absorption of aluminum foam under impact. We designed a split Hopkinson pressure bar(SHPB)-high speed digital camera system to monitor the meso-deformation and failure features, and measure the nonuniformity of deformation of aluminum foam under impact. Themeso-deformation and failure of aluminum foam were observed successfully by the system, and itshowed that there does exist remarkable nonuniform deformation along the specimen, hi order toexpand the experimental results, the specimen of aluminum foam with meso-structures is modeledby 3D Voronoi technique. The numerical results show that the FE model can simulate the experiment well, and shows that nonuniformity of deformation appears in aluminum foam specimensignificantly. The analysis indicates that the assumption of uniform deformation of specimen inSHPB cannot be strictly satisfied for the material of aluminum foam.
机译:中间结构的变形和失效对铝泡沫的装载和能量吸收产生了很大的影响。我们设计了一个拆分霍普金森压力棒(SHPB) - 高速数码相机系统,以监控中间变形和故障特征,并测量铝泡沫的变形的不均匀性。通过该系统成功地观察到铝泡沫的主题变形和失效,并且其沿着试样存在显着的非均匀变形,HI顺序为实验结果,具有中间结构的铝泡沫样品是模型的3D Voronoi技术。数值结果表明,Fe模型可以钻取实验,并表明变形的不均匀性出现在铝泡沫中。分析表明,对于铝泡沫材料,不能严格满足样品inshpb均匀变形的假设。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号