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Laboratory experiments and grain based discrete element numerical simulations investigating the thermo-mechanical behaviour of sandstone

Laboratory experiments and grain based discrete element numerical simulations investigating the thermo-mechanical behaviour of sandstone

This is a Preprint and has not been peer reviewed. This is version 4 of this Preprint.

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Authors

James Woodman , Audrey Ougier-Simonin, Anastasios Stavrou, Ioannis Vazaios, William Murphy, Mark E Thomas, Helen J Reeves ...  more

Abstract

Thermo-mechanical loading can occur in numerous engineering geological environments, from both natural and anthropogenic sources. Different minerals and micro-defects in rock cause heterogeneity at a grain scale, affecting the mechanical and thermal properties of the material. Changes in strength and stiffness can occur from exposure to elevated temperatures, with the accumulation of localised stresses resulting in thermally induced micro-cracking within the rock. In this study we investigated thermal micro-cracking at a grain scale through both laboratory experiments and their numerical simulations. We performed laboratory triaxial experimen...  more

DOI

https://doi.org/10.31223/osf.io/nzmv7

Subjects

Civil and Environmental Engineering, Earth Sciences, Engineering, Geotechnical Engineering, Physical Sciences and Mathematics

Keywords

grain based DEM, micro-crack, thermo-mechanical, triaxial

Dates

Published: 2020-05-30 09:39

Last Updated: 2020-10-26 03:52

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License

CC BY Attribution 4.0 International