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Fracture path prediction of diamond segment in a marble cutting disc
Author(s) -
UCUN İ.,
ASLANTAS K.,
TASGETIREN S.,
SEDAT BÜYÜKSAGIS İ.
Publication year - 2008
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.2008.01232.x
Subject(s) - materials science , brazing , diamond , fracture (geology) , scanning electron microscope , fracture mechanics , composite material , welding , stress intensity factor , diamond tool , displacement (psychology) , metallurgy , psychology , alloy , diamond turning , psychotherapist
This study investigates the fracture path behaviour of diamond segments that have been brazed on a marble cutting disc. The segments are braze‐joined using the oxy‐gas welding technique. The micro‐structure of the brazing zone and the disc were investigated using standard metallographic techniques and scanning electron microscope (SEM). Additionally, we used numerical modelling to study crack growth at the welding zone. Two dimensional linear elastic fracture mechanics principles were used to analyze propagation behaviour of the crack. Stress intensity factors were calculated using displacement correlation method. It was deduced from the SEM analysis of the fractured segment surface that the fracture occurred in the diamond segment due to stress concentration near the sharp corners of the diamond particles that are embedded into the matrix. The existence of such sharp artefacts within the matrix leads to the formation of cracks.