منابع مشابه
Residual Stress Evaluation of Railway Rails
Various stresses add to the railway rails and accumulate fatigue damage due to daily use. Fracture mechanics clarification concerning the growth behavior of cracks is needed, in order to decide the inspection period and the cycle [1], . Though the crack progression and influence of residual stress on fatigue strength has been researched [3] for many years, they are not clear now. The aims of th...
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Abstract General faults in regular electrical railways system could be detect by implementing the specific protection functions such as ground fault or sensitive earth fault. Otherwise, in ungrounded electrical railway systems which using both feeding and return contact rail at the same time, fault detection cannot done with above-mentioned function. Due to recent growth in electrical railway ...
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A new advanced technique in nondestructive testing for residual stresses and surface state of the material is discussed. The testing instrument for internal temperature stresses of seamless rails is developed. The principal, structure of the testing instrument and its application are presented.
متن کاملSurface defects in rails
Despite significant efforts throughout the last decades, the mechanisms behind the formation of squats — a form of rolling contact fatigue (RCF) damage in rails — are not fully understood. Proposed causes of initiation involve, but are not limited to, small initial rail surface irregularities which yield high contact stresses, rail corrugation and varying friction conditions. To complicate matt...
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ژورنال
عنوان ژورنال: Proceedings of the Imperial Academy
سال: 1932
ISSN: 0369-9846,1881-1140
DOI: 10.2183/pjab1912.8.167