From imaging to prediction of carbonate sand behaviour

Nadimi, S., Kong, D. & Fonseca, J. (2017). From imaging to prediction of carbonate sand behaviour. Paper presented at the ICTMS 2017, 26-30 Jun 2017, Lund, Sweden.

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Abstract

The mechanical response of shelly carbonate sand differs significantly from that of more common silica sand and is yet poorly understood. A series of one-dimensional compression tests was performed on this material inside an x-ray scanner and high resolution computed tomography (µCT) images were used to investigate the evolution of the internal microstructure. In addition, numerical simulations were carried out using a newly developed micro Finite Element (µFE) [1]. The capability of the numerical model to measure the stress within a grain with complex morphology is demonstrated here.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: x-ray tomography, carbonate sand, particle scale behaviour, numerical modelling
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/17733

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