軸圧入部のフレッティング疲労き裂発生位置に及ぼす接触端プロファイルの影響

概要

論文の詳細を見る
The objective of the present paper is to evaluate the effect of a contact edge profile on stress distribution and fretting fatigue crack initiation in press-fitted axles. The press-fitted axles were fatigue tested under rotating bending conditions. The profiles of the axle and boss contact edge, the crack initiation site and the fretting corrosion region were investigated after fatigue testing. Stress states of the press-fitted axles were calculated by the finite element method (FEM), taking into consideration the contact edge profile. It was found that the maximum axial stress increases and its location shifts from the contact edge to the inside with increasing contact edge rounding. Moreover, crack initiation sites well correspond to the maximum stress location calculated by FEM considering the contact edge profile.
社団法人日本機械学会の論文
1997-11-25