...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Key Engineering Materials >Numerical Simulation of Impact Transonic Interfacial Fracture
【24h】

Numerical Simulation of Impact Transonic Interfacial Fracture

机译：冲击跨音速界面断裂的数值模拟

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 transonic interfacial crack propagating fracture problem, the generation-phase simulations were done using the moving finite element method based on Delaunay automatic mesh generation. And the contact function based on the penalty method was newly developed to consider the crack face contact near the propagating interfacial crack tip. It was succeeded to visualize in 3-dimensions the Mach shock wave emanated from the propagating crack tip. And it was tried for the transonically propagating crack problem that solving the energy flows through the contact zone or along the Mach shock wave line emitted from the crack tip. The energy flow patterns into the crack tip were also visualized. Furthermore, from the values of the separated dynamic J integrals, it was found that the dynamic J integral is non-zero even for transonic fracture region and the most of the energy release rate is provided from the more compliant material epoxy.
机译：在跨音速界面裂纹扩展裂纹问题中，使用基于Delaunay自动网格生成的运动有限元方法进行了生成阶段的仿真。并新开发了基于罚分法的接触函数，以考虑扩展界面裂纹尖端附近的裂纹面接触。它成功地以3维可视化了从传播的裂纹尖端发出的马赫冲击波。对于跨音速传播的裂纹问题，人们尝试解决能量流经接触区或沿裂纹尖端发出的马赫冲击波线流动的问题。进入裂纹尖端的能量流动模式也可以看到。此外，从分离的动态J积分的值中发现，即使对于跨音速断裂区域，动态J积分也不为零，并且大部分能量释放速率由更顺应的材料环氧树脂提供。

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