摩擦熱を伴う転がりすべり接触荷重による半無限体表面複数き裂の相互干渉

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rights: 本文データは社団法人日本機械学会の許諾に基づきCiNiiから複製したものであるThis paper deals with the two-dimensional rolling-sliding contact problem with frictional heat generation on an elastic half space containing multiple surface cracks. Rolling-sliding contact is simulated as an arbitrarily distributed contact load with normal and shear components, moving with constant velocity over the surface of the half-space. The frictional heat generation on the contact region is estimated by the use of sliding velocity, frictional coefficient and contact pressure. Numerical results of stress intensity factors are obtained for the case of two parallel cracks due to Hertzian and parabolic distributed loadings. The interference effects on the stress intensity factors with the distance between two cracks, and the effects of the slide/roll ratio, frictional coefficient and crack angle on the results, are considered.
1992-12-25