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Digital Photoelasticity: Advancements and Applications

机译:数字光弹性:进展和应用

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摘要

The digital optics revolution in recent years has dramatically enhanced and empowered innovation in all facets of modern life encompassing healthcare, structural safety, and re-creation. In the last two decades, digital photoelasticity has seen great developments and it has now matured into a well-developed technique for reliable measurement of stress and strain distributions in engineering applications. Photo-elasticity basically provides contours of principal stress/strain difference (isochromatic fringes) and principal stress/strain direction (isoclinic fringes). Two principal approaches have been in use: one that uses phase shifting with a monochromatic source and the other that uses color information for data reduction. Accurate results are guaranteed with proper choice of phase-unwrapping algorithms and suitable smoothing methodologies. Demonstration of the application of digital photoelasticity to solve a variety of problems would promote its wider use. This special section with nine papers addresses ail of these concerns.
机译:近年来的数字光学革命极大地增强了现代医疗各个方面的创新能力,并赋予了创新能力,包括医疗保健,结构安全性和再创造。在过去的二十年中,数字光弹性技术取得了长足的发展,现已发展成为一种成熟的技术,可在工程应用中可靠地测量应力和应变分布。光弹性基本上提供了主应力/应变差(等色条纹)和主应力/应变方向(等斜条纹)的轮廓。已经使用了两种主要方法:一种使用单色源的相移,另一种使用颜色信息进行数据缩减。正确选择相位展开算法和合适的平滑方法可确保获得准确的结果。演示应用数字光弹性解决各种问题将促进其更广泛的应用。本节有九篇论文,专门针对这些问题。

著录项

  • 来源
    《Optical engineering》 |2015年第8期|081201.1-081201.2|共2页
  • 作者

    Krishnamurthi Ramesh;

  • 作者单位

    Indian Institute of Technology Madras Department of Applied Mechanics Chennai, Tamilnadu 600042, India;

  • 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

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