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We present a higher-order line element method for Stokes flow around a slender body by taking into account effects of both net force and couple moment densities along its center line. The numerical technique is based on a line integral equation, which in turn is derived by reducing from a boundary integral equation of Stokes flow. The line integral equation of velocity gradient is employed along with...
Surface ring crack defects are normally found on the surfaces of ceramic balls. These ring cracks are circular extending for approximately one quarter of circumference of a circle and these cracks can significantly reduce rolling contact fatigue life. In this study, a boundary element analysis was carried out to identify the main factors governing the propagation of sub-surface cracks. The calculations...
Surface defects such as ring cracks are located on silicon nitride ceramic rolling elements. The random nature of ring crack position creates difficulties in predicting rolling contact fatigue (RCF) life. The influence of the lubricant on the RCF mechanism is difficult to determine due to the scattered nature of RCF life. In this study, a novel experimental technology was utilised to perform rolling...
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