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Title: Coalescence mechanism of multiple flaws in brittle medium under compressive loads
Authors: Lin, P
Wong, RHC
Fu, YF
Tang, CA
Zhou, WY
Keywords: Coalescence mode
Confining effect
Perpendicular distance
Traction coalescence
Issue Date: 2003
Publisher: Scientific.Net
Source: Key engineering materials, 2003, v. 243-244, p. 273-278 How to cite?
Journal: Key engineering materials 
Abstract: This paper aims to qualitatively analyze the mechanics of multi-flaw coalescence under uniaxial and biaxial compression. The specimens containing flaws with different size, 20mm and 40mm in flaw length, were divided into two groups according to their variation of the perpendicular distance between the flaws. By employing a series of numerical and experimental studies, it is found that the confining pressure and the perpendicular distance between flaws have a strong influence on the macroscopic failure pattern, and the behavior of microscopic crack initiation, propagation and coalescence. Five basic types of crack coalescence modes: the tension mode (T), the shear mode (S), the mixed tension/shear mode (TS), the compression mode (C) and the traction mode(Tr) are also discussed.
Description: International Conference on Experimental and Computational Mechanics in Engineering, Dunhuang, Peoples R China, 24-27 August 2002
ISSN: 1013-9826
EISSN: 1662-9795
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