• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Asian Pacific conference for fracture and strength'99 (APCFS'99) >An Analysis of Impact Force in Plain Woven Glass/Epoxy Composites Subjected to Transverse Impact
【24h】

An Analysis of Impact Force in Plain Woven Glass/Epoxy Composites Subjected to Transverse Impact

机译：平面编织玻璃/环氧复合材料在横向冲击下的冲击力分析

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

In the present study, a new model is developed for predicting an impact force from a dynamic strain ofrncomposite plate. For this model, the two assumptions are introduced: Firstly, the impact force and dynamicrnstrain can be discretized into the frequency and amplitude. Secondly, the impact force corresponds to therndynamic strain at any frequencies. The governing equations, derived by applying the Rayleigh-Ritz energyrnmethod and the Lagrange’s principle, are solved by an optimal design technique. An experimental verification isrnperformed on the plain-woven Glass/Epoxy composites plates with the various thickness. The impact forces byrnthe proposed model agree well with experimental results, regardless of a specimen thickness. It is also shownrnthat the acquired impact force is greatly influenced by the thickness. This behavior is attributed to the energyrnabsorbed mechanism, the absorbed energy is governed by the deflection in thin plate whereas the localrnindentation affects primarily on the absorbed energy in thick plate.
机译：在本研究中，开发了一种新模型，用于预测复合板的动态应变的冲击力。对于该模型，引入了两个假设：首先，可以将冲击力和动态应变离散为频率和幅度。其次，冲击力对应于任何频率下的热应变。通过应用Rayleigh-Ritz能量方法和Lagrange原理得出的控制方程是通过最佳设计技术求解的。在具有不同厚度的平纹玻璃/环氧树脂复合材料板上进行了实验验证。所提出的模型的冲击力与实验结果吻合良好，而与试样的厚度无关。还表明，获得的冲击力受厚度的影响很大。此行为归因于能量吸收机制，吸收能量受薄板挠曲支配，而局部压痕主要影响厚板吸收能量。

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