Measurement on Scale-Induced Fatigue Behaviour for Railway Axle
Transferring of fatigue behavior is investigated from material to structure for Chineserailway LZ50 axle carbon steel.S-N data in mid-fatigue life range and fatigue limit data of smoothsmall specimens are applied for material fatigue behavior.Real axles and similar smooth biggerspecimens were tested with respect to fatigue limits.The data of real axles reveal the differencebetween material and a special structure.And the data of similar specimens play a role of bridge toconnect material and material structures.Probabilistic transferring relations are deduced by the datafrom material,to similar specimens,and then to structures at the fatigue limit phase.Structuralprobabilistic S-N curves are obtained by the material fatigue behavior to extend the transferringrelations to entire fatigue life range.Determinations of the fatigue behavior of the groove of LZ50steel axle indicate availability of the present investigation.
Fatigue Material Structure Probability S-N curve
Y.X.Zhao B.Yang M.F.Feng
Institute of Engineering Reliability and safety,State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China
国际会议
成都
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）