...
首页> 外文期刊>Scripta materialia >Noninvasive three-dimensional visualization of defects and crack propagation in layered foam structures by phase-contrast microimaging
【24h】

Noninvasive three-dimensional visualization of defects and crack propagation in layered foam structures by phase-contrast microimaging

机译:通过相衬显微成像对层状泡沫结构中的缺陷和裂纹扩展进行无创三维可视化

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

Layered polymer foam structures used to insulate the fuel tank on the Space Shuttle were investigated by combining phase-contrast X-ray three-dimensional imaging and loading. It is shown that the interlayers between layers were distinctly different from the layers, resulting in incoherent interfaces where defects developed due to severe mismatch of cell structure between the mechanically weaker layers and stronger interlayers. These images reveal noninvasively that cracks nucleated readily at the interfaces and grew preferably along the direction of foam rise.
机译:通过相衬X射线三维三维成像和加载相结合,研究了用于隔离航天飞机燃料箱的层状聚合物泡沫结构。结果表明,各层之间的中间层与各层明显不同,从而导致界面不连贯,由于机械强度较弱的层和较强的中间层之间的单元结构严重失配,从而形成了缺陷。这些图像无创地揭示了裂纹在界面处容易成核,并优选沿着泡沫上升的方向增长。

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