Fracture morphology is more rough in room temperature, low fatigue stress and more fatigue cycles, but the length of fiber pullout is longer.
室温及疲劳循环应力低、循环周次多的断口粗糙度大，纤维拔出较长；
Basing on the results of the experiment, analyze the fail model of B-Fiber pulling out and present the formula of the peak pullout load which accords with the results of the experiment better.
根据试验结果分析贝卡尔特钢纤维的拔出破坏类型，并且给出了与试验结果符合良好的最大拔出力计算公式。
Basing on the results of the experiment, analyze the fail model of B-Fiber pulling out and present the formula of the peak pullout load which accords with the results of the experiment better.
根据试验结果分析贝卡尔特钢纤维的拔出破坏类型，并且给出了与试验结果符合良好的最大拔出力计算公式。
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