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18 一均質彈性材料 B 為矩形斷面,其厚度為 4 mm,容許拉力強度為 120 MPa。現以兩支直徑為 16 mm之螺栓固定於一剛體材料 A 上(如圖所示)。若螺栓之容許剪力強度為 30 MPa,則
問題詳情
18 一均質彈性材料 B 為矩形斷面,其厚度為 4 mm,容許拉力強度為 120 MPa。現以兩支直徑為 16 mm之螺栓固定於一剛體材料 A 上(如圖所示)。若螺栓之容許剪力強度為 30 MPa,則材料 B 之寬度至少需為多少方能確保其為連接螺栓剪應力控制狀態?
(A)12.6 mm
(B)18. 9 mm
(C)22. 6 mm
(D) 25. 1 mm
參考答案
答案:D
難度:非常困難0
統計:A(1),B(3),C(1),D(0),E(0)
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