TY - GEN
T1 - Effect of the fracture process zone in directed crack propagation in borehole blasting
AU - Exadaktylos, George
AU - Agioutantis, Zacharias
AU - Lambrou, Eleftherios
PY - 1994
Y1 - 1994
N2 - The growth of directed radial cracks originating from diametrically opposite notches in a blasthole, is analyzed. The cracks are considered to be composed from a traction free portion and a microcracking zone where cohesive forces act. A preliminary energy balance approach showed that the length of this zone has an effect on the blast results. Subsequently, a coupled non-linear displacement discontinuity model was applied in order to verify this effect.
AB - The growth of directed radial cracks originating from diametrically opposite notches in a blasthole, is analyzed. The cracks are considered to be composed from a traction free portion and a microcracking zone where cohesive forces act. A preliminary energy balance approach showed that the length of this zone has an effect on the blast results. Subsequently, a coupled non-linear displacement discontinuity model was applied in order to verify this effect.
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U2 - 10.2118/28085-ms
DO - 10.2118/28085-ms
M3 - Conference contribution
AN - SCOPUS:85052135230
SN - 9781555634643
T3 - Society of Petroleum Engineers - Rock Mechanics in Petroleum Engineering 1994
SP - 463
EP - 470
BT - Society of Petroleum Engineers - Rock Mechanics in Petroleum Engineering 1994
Y2 - 29 August 1994 through 31 August 1994
ER -