TY - GEN
T1 - Determination of effective stress intensity factor range of mode ii fatigue crack propagation using improved experimental method
AU - Liu, M.
AU - Hamada, S.
PY - 2012
Y1 - 2012
N2 - Many cases of rolling contact fatigue failure, such as those that occur in railway rails, rolling bearings, and gears, are due to repeated high shear load. In order to prevent such fatigue failures, the resistance of a material against to repeated high shear load must be determined. The fatigue crack growth rate is dependent on the stress intensity factor range of Mode II ΔK II. However, Mode II crack propagation characteristics vary according to the method by which they are determined. We improved the experimental method proposed by Murakami and measured the effective stress intensity factor range of Mode II AK IIeff. Changes to the jigs and specimen were made and the experimental method was such that the ideal mechanical model was expected to be approached. Furthermore, to measure the ΔKIIeff, several strain gauges were applied to the specimen around the crack tip. Using the improved method, some ΔK IIeff values during the Mode II fatigue crack propagation tests can be measured.
AB - Many cases of rolling contact fatigue failure, such as those that occur in railway rails, rolling bearings, and gears, are due to repeated high shear load. In order to prevent such fatigue failures, the resistance of a material against to repeated high shear load must be determined. The fatigue crack growth rate is dependent on the stress intensity factor range of Mode II ΔK II. However, Mode II crack propagation characteristics vary according to the method by which they are determined. We improved the experimental method proposed by Murakami and measured the effective stress intensity factor range of Mode II AK IIeff. Changes to the jigs and specimen were made and the experimental method was such that the ideal mechanical model was expected to be approached. Furthermore, to measure the ΔKIIeff, several strain gauges were applied to the specimen around the crack tip. Using the improved method, some ΔK IIeff values during the Mode II fatigue crack propagation tests can be measured.
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M3 - Conference contribution
AN - SCOPUS:85127296480
SN - 978-5-905576-18-8
T3 - 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
BT - 19th European Conference on Fracture
PB - European Conference on Fracture, ECF
T2 - 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012
Y2 - 26 August 2012 through 31 August 2012
ER -