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Revisit of the two-dimensional indentation deformation of an elastic half-space

机译：回顾弹性半空间的二维压痕变形

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摘要

Recently, there is a growing interest in two-dimensional (2D) plane indentation as an imprinting method for creating nanostructures. There is also a strong interest in using 2D flat-ended, wedge, and cylindrical indenters for characterizing mechanical properties of materials. In either case the knowledge of load versus displacement of the indenter is important. However, there has been some confusion about the load-displacement relationships for 2D indentation in the literature. Concerning this confusion on the relationship between the indentation load and the indentation depth for 2D elastic indentations, the symmetric indentation of an elastic half-space is studied. Parameters are introduced in determining the semianalytical relation between the indentation load and the indentation depth for flat-ended indenters and in determining the dependence of the indentation depth on the contact size for non-flat-ended indenters. The indentation load is proportional to the indentation depth for the indentation by flat-ended indenters and is a parabolic function of the indentation depth to the first order of approximation for non-flat-ended indenters including the wedge and cylindrical indenters.
机译：最近，人们对二维（2D）平面压痕作为创建纳米结构的压印方法越来越感兴趣。使用二维平端，楔形和圆柱形压头来表征材料的机械性能也引起了人们极大的兴趣。在任何一种情况下，了解压头的负载与位移关系都很重要。然而，在文献中关于二维压痕的载荷-位移关系存在一些困惑。关于二维弹性压痕的压痕载荷与压痕深度之间的关系的这种混淆，研究了弹性半空间的对称压痕。在确定平头压头的压痕载荷和压痕深度之间的半解析关系以及确定非平头压头的压痕深度对接触尺寸的依赖性时引入参数。压痕载荷与平端压头的压痕深度成比例，对于包括楔形和圆柱形压头在内的非平端压头，压痕深度是近似第一阶的抛物线函数。

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  • 来源
    《Journal of Materials Research》 |2009年第6期|1976-1982|共7页
  • 作者

    Fuqian Yang; Yang-Tse Cheng;

  • 作者单位

    Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506;

    Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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