Materials Transactions Online

Materials Transactions, Vol.57 No.12 (2016) pp.2089-2096
© 2016 The Japan Institute of Metals and Materials

Construction of Finite Element Meshes for Polycrystal Grains Model from X-ray CT Image

Masakazu Kobayashi1, Tomohiko Matsuyama1, Aya Kouno1, Hiroyuki Toda2 and Hiromi Miura1

1Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan
2Department of Mechanical Engineering, Kyusyu University, Fukuoka 819-0395, Japan

A method to build an image-based model from a high-resolution X-ray CT image has been proposed for crystal plasticity finite element (CPFE) analysis in this study. The grain microstructures of aluminum alloy were captured by X-ray CT in synchrotron radiation facility, SPring-8. An image-based model of crystallographic grains was reproduced by the proposed method, and the model was analyzed by CPFE. By this, it was represented that deformation analysis of a polycrystal microstructure considering actual grain shapes was available suggesting that the deformation mechanism would be made clear by the image-based CPFE with further work.

[doi:10.2320/matertrans.M2016260]

(Received 2016/07/19; Accepted 2016/09/13; Published 2016/11/25)

Keywords: grain microstructure, image based modeling, tomography, inhomogeneous deformation

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