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Effects of cell size and orientation on compressive strength of WBK

机译：细胞大小和取向对WBK抗压强度的影响

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摘要

This article presents the mechanical properties of mild steel WBK (Wire-woven Bulk Kagome) cores under compression. A method to measure precisely the average displacements of specimens is described. And analytic solutions of the equivalent strength and Young's modulus are introduced. The equivalent peak strengths of the WBK cores in y and x-orientations were about 3/4 and 1/2 of that in z-orientation, respectively, and the equivalent Young's moduli in y and x-orientations were about 5/6 of that in z-orientation. Regardless of the orientation or cell size, the measured equivalent peak strengths were always higher than those estimated by the analytic solutions which were modified taking into account the curved struts and the brazed joints among the wires. On the other hand, the measured equivalent Young's moduli were often somewhat lower than those estimated by the corresponding equations modified accounting for the realistic geometry of WBK, because of the combined rotations of the small, triangular structures composing the in-plane meshes and the out-of-plane, helically-curved struts in the WBK cores.
机译：本文介绍了压缩状态下的软钢WBK（钢丝编织散装Kagome）芯的机械性能。描述了一种精确测量样品平均位移的方法。并介绍了等效强度和杨氏模量的解析解。 WBK磁芯在y和x方向的等效峰值强度分别约为z方向的3/4和1/2，而y和x方向的等效杨氏模量约为峰值的5/6。在z方向无论定向或单元大小如何，测得的等效峰值强度始终高于通过解析解决方案估算的等效峰值强度，而解析解决方案考虑了弯曲的支撑杆和金属丝之间的钎焊接头而进行了修改。另一方面，由于组成面内网格和外层网格的小三角形结构的组合旋转，所测得的等效杨氏模量通常比经修正的相应方程（根据WBK的实际几何形状）估计的模量略低。 WBK核心中的平面螺旋弯曲支柱。

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  • 来源
    《Composite Structures》 |2014年第2期|635-645|共11页
  • 作者

    M.G. Lee; V.M. Hoang; J.W. Yoon; S.M. Han; Y.S. Suh; K.J. Kang;

  • 作者单位

    School of Mechanical Engineering, Chonnam National Univ., Gwang-ju, Republic of Korea;

    School of Mechanical Engineering, Chonnam National Univ., Gwang-ju, Republic of Korea;

    Marine Research Institute, Samsung Heavy Industries Co., Ltd., Republic of Korea;

    Marine Research Institute, Samsung Heavy Industries Co., Ltd., Republic of Korea;

    Marine Research Institute, Samsung Heavy Industries Co., Ltd., Republic of Korea;

    School of Mechanical Engineering, Chonnam National Univ., Gwang-ju, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Wire-woven metal; Sandwich; Core; Compression;

    机译：线编织金属;三明治;核心;压缩;

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