机械零件 - 2026 进行中

科目: 机械零件
级别: XII (I级最简单，XII级最难)
类别: 大学生
试题语言: English
题数: 15
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