Paper Title:
A new Approach in Residual Stresses Analysis by Speckle Interferometry
  Abstract

The knowledge of residual stresses allows a reliable prediction of structure performances evolution, such as service life [1-3]. In this paper, we develop a new method for residual stresses determination combining Electronic Speckle Pattern Interferometry (ESPI) with the machining of a groove. The internal stress field is perturbed as the depth of the groove is increased incrementally. The structure finds a new equilibrium state generating displacements which are measured using ESPI. This method was tested on an aluminium alloy AU4G plate treated locally by an ultrasonic shot-peening. The investigation of the images obtained with the phase shifting technique and fringe patterns, makes it possible to analyze, simultaneously, the stress profile along two directions: along the depth of the structure, and along the groove direction.

  Info
Periodical
Materials Science Forum (Volumes 524-525)
Edited by
W. Reimers and S. Quander
Pages
465-470
DOI
10.4028/www.scientific.net/MSF.524-525.465
Citation
A. Maras, G. Montay, O. Sicot, E. Rouhaud, M. François, "A new Approach in Residual Stresses Analysis by Speckle Interferometry", Materials Science Forum, Vols. 524-525, pp. 465-470, 2006
Online since
September 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kenji Machida, Mitsuru Sato, Shinji Ogihara
Abstract:Fiber reinforced composites are heterogeneous and anisotropic. The applicability of the stress analysis methods on such heterogeneous and...
1121
Authors: Pu Lin Nie, Yao Shen, Jie Yang, Qiu Long Chen, Xun Cai
Abstract:Cross-sectional nanoindentation (CSN) is a new method for measuring interface adhesion of thin films. The interfacial energy release rate...
400
Authors: Ming Wang, Dong Mei Guo
Abstract:In order to improve the displacement measurement accuracy of the laser diode self-mixing interference (SMI), phase measurement method is...
247
Authors: Yun Wei Meng, He Jun Chai
Abstract:Associating with highway widening project of Zhangzhou coastal main artery, the numerical analysis is carried out to analyze the lateral...
3307
Authors: Xiao Jing Tan, Bin Wu
Chapter 13: Advanced Structural Experimental Techniques and Sensing Techniques
Abstract:Pseudo-dynamic testing using force- mixed control strategy is presented for structures with large stiffness. In this proposed method, the...
1133