グラスセラミックスの疲労特性に及ぼすき裂の成長と合体の影響 : 等長二き裂の場合(特集木質材料)

概要

論文の詳細を見る
The effects of interaction and coalescence of cracks on the fatigue behavior of high brittle materials such as glass and ceramics are examined. For glass ceramics specimens with two different center distance collinear cracks introduced by Vickers microhardness indentation, the cyclic fatigue tests were carried out under four point bending load. It was found that the tine to failure for a certain applied stress significantly decreased with increasing the number of indentation cracks and the center distance of indentation cracks. The prediction of time to failure with crack interaction and crack coalescence was also carried out. The results were in good agreement with the experimental results. The validity of the proposed method of fatigue life prediction was confirmed.
社団法人日本材料学会の論文
1997-04-15