Experimental and Numerical Study of Shear Fracture in Brittle Materials with Interference of Initial Double Cracks

A simultaneous experimental and numerical study of shear fracture of concrete-like materials is carried out using Brazilian disc specimens with initial double edge cracks and fourpoint bending beam specimens with double edge-notches. The interference effects of two cracks/notches are investigated th...

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Bibliographic Details
Published in:Acta mechanica solida Sinica 2016-10, Vol.29 (5), p.555-566
Main Authors: Haeri, Hadi, Sarfarazi, Vahab, Marji, Mohammad Fatehi, Hedayat, Ahmadreza, Zhu, Zheming
Format: Article
Language:English
Subjects:
Classical Mechanics
concretelike specimens
crack propagation
double edge cracks
Engineering
indirect shear loading
overlapped cracks
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
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Summary:A simultaneous experimental and numerical study of shear fracture of concrete-like materials is carried out using Brazilian disc specimens with initial double edge cracks and fourpoint bending beam specimens with double edge-notches. The interference effects of two cracks/notches are investigated through varied ligament angles and crack lengths. It is shown that shear fracturing paths change remarkably with the initial ligament angles and crack lengths. The cracked specimens are numerically simulated by an indirect boundary element method. A comparison between the numerical results and the experimental ones shows good agreement.
ISSN:0894-9166
1860-2134
DOI:10.1016/S0894-9166(16)30273-7