首页> 外文会议>Conference on Speckle Metrology 2003 Jun 18-20, 2003 Trondheim, Norway >Essential features of residual stresses determination in thin-walled plane structures on a base of whole-field interferometric measurements
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Essential features of residual stresses determination in thin-walled plane structures on a base of whole-field interferometric measurements

机译:基于全场干涉测量法确定薄壁平面结构中残余应力的基本特征

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Sophisticated technique for reliable quantitative deriving residual stress values from initial experimental data, which are inherent in combined implementing the hole drilling method with both holographic and speckle interferometry, is described in detail. The approach developed includes both possible ways of obtaining initial experimental information. The first of them consists of recording a set of required interference fringe patters, which are resulted from residual stress energy release after through hole drilling, in two orthogonal directions that coincide with principal strain directions. The second way is obtaining a series of interrelated fringe patterns when a direction of either observation in reflection hologram interferometry or dual-beam illumination in speckle interferometry lies arbitrary with respect to definite principal strain direction. A set of the most typical both actual and analogous reference fringe patterns, which are related to both reflection hologram and dual-beam speckle interferometry, are presented.
机译:详细介绍了从初始实验数据中可靠地定量推导残余应力值的先进技术,这是结合使用全息和散斑干涉法进行钻孔方法所固有的。开发的方法包括获得初始实验信息的两种可能方法。它们的第一个包括记录一组所需的干涉条纹图案,这些条纹图案是由通孔钻孔后在与主应变方向一致的两个正交方向上释放残余应力能量而产生的。第二种方式是,当在反射全息干涉法中观察的方向或散斑干涉法中的双光束照明的观察方向相对于确定的主应变方向处于任意方向时,获得一系列相互关联的条纹图案。提出了一组与反射全息图和双光束散斑干涉法都相关的最典型的实际和相似参考条纹图案。

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