• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Experimental and numerical investigation on damage behavior of honeycomb sandwich panel subjected to low-velocity impact
【24h】

Experimental and numerical investigation on damage behavior of honeycomb sandwich panel subjected to low-velocity impact

机译：低速冲击蜂窝夹层板损伤行为的实验和数值研究

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

This paper presents the low-velocity impact behavior of sandwich panel with carbon fiber reinforced plastic (CFRP) composite facesheet and Nomex honeycomb core through experimental and numerical methods. Experiments were carried out on two thickness of honeycomb core at various impact energy levels. The dynamic response including contact force history and energy absorption as well as contact duration was recorded. The damage modes were obtained through non-destruction inspection (NDI) C-scan and microscopic observation. A refined three-dimensional finite element model combined with continuum damage mechanics (CDM) was developed with composite plies and detailed honeycomb core. Physically-based Puck's composite failure criteria and energy based progressive damage model were used to capture the intralaminar damage initiation and evolution, respectively. The interlaminar damage of facesheet and debonding of facesheet/core interface were predicted using cohesive element. The hexagonal honeycomb cells were characterized in FE model with an elasto-plastic constitutive model and damage criterion in detail during impact. The simulation results show good agreements with experiments and the model can be used to predict the low-velocity impact response and impact damage effectively. More detailed responses, such as internal damage details, damage modes and evolution, are observed and discussed with the numerical model proposed.
机译：本文通过实验和数值方法介绍了砂纤维面板用碳纤维增强塑料（CFRP）复合面板和Nomex蜂窝芯的低速冲击行为。在各种冲击能级的两种厚度的蜂窝芯上进行实验。记录包括接触力历史和能量吸收的动态响应以及接触持续时间。通过非销毁检查（NDI）C扫描和微观观察获得损伤模式。通过复合层和详细的蜂窝芯，开发了一种精致的三维有限元模型与连续损伤力学（CDM）进行开发。基于物理的冰球的复合故障标准和能量基础渐进式损伤模型分别用于分别捕获胰蛋白酶损伤启动和演化。使用粘性元素预测了面表面板的InterlaMar损坏以及面表/核心界面的剥离。六边形蜂窝细胞在Fe模型中表征，具有弹性塑料本构模型和在撞击期间详细损坏标准。仿真结果表明，与实验良好的协议，该模型可用于预测低速度影响响应和有效损坏。更详细的响应，例如内部损坏细节，损坏模式和演化，并用出了所提出的数值模型讨论。

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