Please use this identifier to cite or link to this item: https://utcc-dspacecris.eval.plus/handle/6626976254/472
Title: Numerical Simulation of the Dynamic Breakage Testing of Sandstone, Part I: Development of Homogeneous Constitutive Model for the Fragmentation Analysis in Sandstone
Authors: Vanichkobchinda, P. 
Reddish, D. 
Stace, L. 
Whittles, D. 
Issue Date: 2007
Publisher: University of the Thai Chamber of Commerce
University of the Thai Chamber of Commerce
Source: P. Vanichkobchinda, D. Reddish, L. Stace, D. Whittles (2007) Numerical Simulation of the Dynamic Breakage Testing of Sandstone, Part I: Development of Homogeneous Constitutive Model for the Fragmentation Analysis in Sandstone. UTCC Engineering Research Papers.
Abstract: Laboratory drop weight tests rig and numerical modelling have been used to investigate theimpact energy effect on the degree of dynamic fragmentation of cylindrical rock samples. Thedrop weight tests indicated that the degree of dynamic fragmentation of the Daley Dalesandstone formed a non-linear relation with impact energy. In the numerical modelling of thedrop weight test, the shear localisation developed in the Daley Dale sandstone was assumed torepresent discrete fracture planes. Shear bands, outputs of the image analysis of the numericalmodel, were used to separate solid material from shattered or broken material, allowing theFLAC output from the dynamic modelling to be processed into black and white fragmentedimages. This was undertaken to determine particle size distributions. Corresponding gradingcurves from the numerical modelling were then validated against the laboratory derived curvesindicating the potential of numerical modelling to simulate the process of rock fragmentation.
URI: https://scholar.utcc.ac.th/handle/6626976254/472
ISSN: 1906-1625
Rights: This work is protected by copyright. Reproduction or distribution of the work in any format is prohibited without written permission of the copyright owner.
Appears in Collections:EN: Journal Articles

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