Residual stress measurement using a radial in-plane speckle interferometer and laser annealing : preliminary results
Residual stress measurement using a radial in-plane speckle interferometer and laser annealing : preliminary results
复制标题
使用径向面内散斑干涉仪和激光退火进行残余应力测量：初步结果
DOI：
10.1016/s0143-8166(03)00069-1
复制
发表时间：
2004
影响因子：
4.6
通讯作者：
G. H. Kaufmann
中科院分区：
文献类型：
--
作者：
M. Viotti;R. Suterio;A. Albertazzi;G. H. Kaufmann
本文提出了一种基于数字散斑干涉和激光退火的组合系统，用于测量韧性材料中的残余应力。该系统允许测量的径向面内位移场时产生的试样受到残余应力局部加热。这种测量残余应力的新方法具有非破坏性的优点，并且可以很容易地应用于现场测试。的组合系统的描述之后的演示的初步结果，说明这两种技术的能力，以量化残余应力场，并确定其主要方向。
This paper presents a combined system based on digital speckle pattern interferometry and laser annealing to determine residual stresses in ductile materials. The system allows the measurement of the radial in-plane displacement field generated when a specimen subjected to residual stresses is locally heated. This novel approach for measuring residual stresses has the advantage of being nondestructive and can be easily applied to in situ tests. The description of the combined system is followed by the presentation of preliminary results which illustrate the ability of both techniques to quantify residual stress fields and also to determine their principal directions.