Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30573
Title: Experimental and numerical study on splitting failure of brittle solids containing single pore under uniaxial compression
Authors: Wong, RHC
Lin, P
Tang, CA
Keywords: Brittle failure
Compression
Crack
Porous solids
Splitting
Issue Date: 2006
Publisher: Elsevier
Source: Mechanics of materials, 2006, v. 38, no. 1-2, p. 142-159 How to cite?
Journal: Mechanics of materials 
Abstract: Under uniaxial compression, brittle solids are frequently observed to fail by splitting parallel to the direction of loading. Although this failure has long been recognized, considerable confusion regarding how such splitting mechanisms develops still remains. Axial propagation of a crack-like flaw inclined to the loading direction of compression is one of the accepted mechanisms. In this paper, the axial propagation of a pore-like flaw as one of the mechanisms of splitting failure is approached. A series of physical and numerical tests of uniaxial compression on samples containing a single hole with varied diameters and sample widths are carried out to investigate the splitting failure, the failure modes and strength characterization due to crack growth from such flaw. Samples made from the Hong Kong granite are used in the physical tests to study the inference of heterogeneity of solid on crack growth. A Material Failure Process Analysis code (MFPA2D) is used as a numerical simulation tool to compare and explain the mode of failure from experiment. Sammis and Ashby [Sammis, C.G., Ashby M.F., 1986. The failure of brittle porous solids under compressive stress states. Acta Metall. 34, 511-526] theoretical crack model is employed to study the inference of sample size and diameter of hole on peak strength.
Description: This special issue contains papers, which were selected from the presentations at the International Symposium on Macro-, Meso-, Micro- and Nano-Mechanics of Materials (MM2003), held on December 8–10, 2003 at the Hong Kong University of Science and Technology (HKUST), Hong Kong.
URI: http://hdl.handle.net/10397/30573
ISSN: 0167-6636
EISSN: 1872-7743
DOI: 10.1016/j.mechmat.2005.05.017
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