Proposal of a method to analyze 3D deformation/fracture characteristics inside materials based on a stratified matching approach

Authors:
Mitsuru Nakazawa;Masakazu Kobayashi;Hiroyuki Toda;Yoshimitsu Aoki
Affiliations:
3-14-1, Hiyoshi, Kohoku-ku, 223-8522, Yokohama, Kanagawa, Japan;1-1, Hibarigaoka, Tenpakucho, 441-8580, Toyohashi, Aichi, Japan;1-1, Hibarigaoka, Tenpakucho, 441-8580, Toyohashi, Aichi, Japan;3-14-1, Hiyoshi, Kohoku-ku, 223-8522, Yokohama, Kanagawa, Japan
Venue:
Machine Vision and Applications - Integrated Imaging and Vision Techniques for Industrial Inspection
Year:
2010

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Abstract

In the past, deformation/fracture (D/F) characteristics, defined as load-deformation relationships until the materials are fractured, have been analyzed and evaluated on the surface. The D/F characteristics are affected by more than 10,000 micro-scale internal structures like air bubbles (pores), dispersed particles and cracks in 1 mm3; therefore, it is required to analyze nano-scale D/F characteristics inside materials. In this paper, we propose an analysis method by obtaining displacement vectors of dispersed particles from nano-order 3D-CT images. A problem of matching over 10,000 dispersed particles between deformation is solved by a stratified matching.