Please use this identifier to cite or link to this item:
|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.
|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|
Show full item record Recommend this item
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.