冷轧机支撑辊的疲劳裂纹形成寿命预估

Prediction of crack initiation life of backup roll in cold rolling mill

应用大范围损伤下预估非纯弯曲梁疲劳裂纹形成寿命的封闭解答公式,预估了冷轧机支撑辊的疲劳裂纹形成寿命。本文方法具有简单有效的特点,为预估冷轧机支撑辊的疲劳裂纹形成寿命提供了新思路和新方法。

By using closed - form solution on predicting crack initiation life of non - pure bending beam in large range of damage, the crack initiation life of backup roll in cold rolling mill is predicted. The method adopted in this paper is simple but effective, which has put forward a new thinking and new way for the prediction of the fatigue crack in backup roll of cold rolling mill.