Paper Title:
3-D High-Density Strain Mapping Procedure Based on High-Resolution CT
  Abstract

A tracking procedure for the high-resolution X-ray computed tomography (CT) has been developed in order to measure 3-D local strain within a deforming material in high-density. A dispersion-strengthened copper alloy model sample with alumina particles, which contains micropores, was visualized by the synchrotron radiation CT. The pores observed in reconstructed CT volumes were used as tracking markers. The developed tracking method using a set of matching parameters, which classifies matched, pended and rejected markers, exhibited high ratio of success tracking. Furthermore, the ratio was improved by applying the spring model method, which is one of the particle image velocity (PIV) methods utilized in the field of the fluid mechanics, to the pended markers. The method based on the image analysis of CT imaging volumes provides us 3-D high-density strain mapping.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
2377-2382
DOI
10.4028/www.scientific.net/MSF.539-543.2377
Citation
M. Kobayashi, H. Toda, T. Ohgaki, K. Uesugi, D. S. Wilkinson, T. Kobayashi, Y. Kawai, Y. Aoki, "3-D High-Density Strain Mapping Procedure Based on High-Resolution CT", Materials Science Forum, Vols. 539-543, pp. 2377-2382, 2007
Online since
March 2007
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$32.00
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