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Title: Experimental study on propagation and coalescence mechanisms of 3D surface cracks
Authors: Huang, M
Wong, RHC
Keywords: 3D crack
Brittle materials
Propagation and coalescence
Rock mechanics
Issue Date: 2007
Publisher: 岩石力學與工程學報編輯部
Source: 岩石力学与工程学报 (Chinese journal of rock mechanics and engineering), 2007, v. 26, no. 9, p. 1794-1799 How to cite?
Journal: 岩石力学与工程学报 (Chinese journal of rock mechanics and engineering) 
Abstract: A series of uniaxial compressive tests on the frozen PMMA with pre-existing 3D cracks were performed in laboratory to investigate the mechanisms of crack propagation and coalescence in brittle materials. It is found that for 3D surface cracks, the interactions of cracks affect crack growth and extension in two aspects, i. e. the interaction either prompting crack extension or restraining it. The mechanism of crack interaction depends mainly on the location of cracks in spatial domain. The propagation and coalescence of 3D surface cracks are dependent on the crack depth and the crack configuration. The test results are helpful to more understanding of the failure mechanism of brittle materials including PMMA and also to the study of the failure mechanism of rock under loading.
ISSN: 1000-6915
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