関西支部講演会講演論文集
Online ISSN : 2424-2756
セッションID: 415
会議情報
415 転がり疲労下で発生したはく離の断面形状観察とその応力拡大係数評価(GS-3 微小損傷計測)
田邉 裕貴三好 良夫高松 徹林 恭年池田 光宏瀧井 裕一北村 和久
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会議録・要旨集 フリー

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Bearing tests were carried out under various loading conditions for bearing steel SUJ2, and the morphology of flaking failures caused by rolling contact fatigue were investigated by cross-sectional observation. It was found that the depth of flaking failure tended to be smaller than that was estimated by the conventional method based on the maximum shearing stress. A new method to estimate the depth of flaking failure based on stress intensity factor K_<II> of subsurface crack was proposed in this paper. It was confirmed that the depth estimated by this method was closer to the actual depth than estimated by conventional method.
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© 2001 一般社団法人 日本機械学会
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