キー溝付軸の組合せ曲げねじり疲労強度

概要

論文の詳細を見る
The transmission shaft is one of the most important mechanical components and is widely used in machines. Usually, most of transmission shafts have steps and key ways, and fracture of those shafts is caused by crack initiation and propagation due to stress concentration from the key way. In practice, transmission shafts are commonly subjected to the combined stress from torsional and bending moments applied simultaneously. In consequence, the stress distribution is quite complex and it is difficult to analyze the stress appearing at the bottom of the key way. In the present study, stepped specimens with or without key ways were used and fatigue tests were carried out under combined stress of reversed torsion and reversed plan bending. From the test results, the following conclusions were obtained concerning the S-N curves, fatigue strength, the location of fracture and the initiation and propagation of cracks.
社団法人日本材料学会の論文
1986-04-15