The result indicates that the relative difference of the DTR computing value between the improved DTR and the original DTR enlarges with the increase of the number of fatigue cracks and lessens with the increase of q.

• 验证结果表明:修正DTR计算模型与原DTR计算模型的DTR计算值相对差随疲劳裂纹萌生条数的增加而增大; 随相继裂纹萌生间隔比的增加,两种计算模型的DTR计算值相对差减小。