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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/787

Title: Propagation of fractures from an interface in a Brazilian test specimen
Authors: Malan, DF
Napier, JAL
Watson, BP
Keywords: Interface
Fractures
Brazilian tensile test
Engineering
Issue Date: Dec-1994
Publisher: Pergamon-Elsevier Science Ltd
Citation: Malan, DF, Napier, JAL and Watson, BP. 1994. Propagation of fractures from an interface in a Brazilian test specimen. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, vol. 31(6), pp 581-596
Abstract: The influence of an interface on the initiation and propagation of fractures was investigated using the Brazilian tensile test (diametral compression of a disc). Failure in the Brazilian test takes the form of an extension fracture in the loaded diameter. Various samples with an interface running perpendicular or nearly perpendicular to the diametral axis were tested. The properties of the interface determined the fracture pattern. Failure in the test specimens was simulated using a computer programme utilizing the displacement discontinuity method. The pattern of fractures predicted by the simulation is fairly consistent with that observed in the physical tests. It is shown that slip occurring on the interface is an important mechanism affecting the fracturing process.
Description: Copyright: 1994 Pergamon-Elsevier Science Ltd
URI: http://hdl.handle.net/10204/787
ISSN: 0148-9062
Appears in Collections:Mining and geoscience
General science, engineering & technology

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