Quantitative Observation of Strain Localisation in a Partially Saturated Triaxial Specimen Using Microfocus X-ray CT with Image Analysis

Y Higo,R Morishita,F Oka,Y Matsushima

doi:10.1007/978-3-319-13506-9_47

Quantitative Observation of Strain Localisation in a Partially Saturated Triaxial Specimen Using Microfocus X-ray CT with Image Analysis

Y Higo, R Morishita + Show 2 more

https://doi.org/10.1007/978-3-319-13506-9_47

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Publication Date: Dec 30, 2014

Citations: 3

Affiliation: Kyoto University, Japan Oil Gas and Metals National Corporation (Japan), Central Japan Railway (Japan)

#Microfocus X-ray CT #Region Growing Segmentation Technique + Show 8 more

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Abstract

Strain localisation behaviour in a partially saturated dense sand specimen during triaxial compression has been observed by microfocus X-ray CT and image analyses of CT images. Digital image correlation (DIC) has provided displacement and strain field in the specimen in a macroscopic point of view. In the meantime, trinarization by a region growing segmentation technique has given local void ratio and degree of saturation microscopically. Through these image analyses of CT images, the progressive strain localisation behaviour and microstructural changes in the shear band have been quantitatively studied.

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