机械零件 - 2026 进行中

科目: 机械零件
级别: XII
类别: 大学生
测试题目: 英语
问题示例: A shaft has a theoretical stress-concentration factor Kt = 2.5 at a shoulder fillet. If the notch sensitivity factor is q = 0.6, what fatigue stress-concentration factor Kf should be used? 1.50, 1.90, 2.10, 2.50