...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the American Helicopter Society >Experimental Evaluation of Novel Foam-Filled Energy-Absorbing Composite Tubes
【24h】

Experimental Evaluation of Novel Foam-Filled Energy-Absorbing Composite Tubes

机译：新型泡沫填充吸能复合管的实验评价

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An experimental evaluation of a novel energy-absorbing device is presented. The device is composed of an angle-ply flexible matrix composite tube with a brittle foam filling. The device exhibits a large Poisson's contraction upon being loaded in tension due to high anisotropy of the composite shell material. Owing to this contraction, the foam filling inside the tube is radially crushed. The device exhibits multiple energy-absorbing mechanisms through foam crushing and damage in the composite shell. Energy-absorbing characteristics of crush tubes were experimentally evaluated by varying the fiber angle of the tube and the density of the foam. In the best case, a ±60-deg crush tube with 128 kg/m~3 foam exhibited a specific energy absorption of 13.9 J/g and a volumetric energy absorption of 8.10 MPa. The devices exhibit wide variations in force-displacement characteristics with changes in the parameters involved.
机译：提出了一种新型能量吸收装置的实验评估。该装置由具有脆性泡沫填充物的角形挠性基体复合管组成。由于复合壳材料的高各向异性，该装置在承受张力时显示出大的泊松收缩。由于这种收缩，填充在管内的泡沫被径向压碎。该装置通过泡沫破碎和复合材料外壳的损坏表现出多种能量吸收机制。通过改变管的纤维角度和泡沫的密度，通过实验评估了破碎管的能量吸收特性。在最佳情况下，具有60 kg / m〜3泡沫的±60度破碎管的比能量吸收为13.9 J / g，体积能量吸收为8.10 MPa。随着所涉及参数的变化，这些装置在力-位移特性上表现出很大的差异。

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