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77. 承受扭轉的圓軸,如為成本以及製造考量,常以減輕重量、節省材料的方法,但又不可降低承受扭轉之強度,因此通常採用空心圓軸。這個考量的主要原因是下列何者?(A)剪應力在表面最小,愈靠軸心越大(B)軸
問題詳情
77. 承受扭轉的圓軸,如為成本以及製造考量,常以減輕重量、節省材料的方法,但又不可降低承受扭轉之強度,因此通常採用空心圓軸。這個考量的主要原因是下列何者?
(A)剪應力在表面最小,愈靠軸心越大
(B)軸向應力在表面最大,愈靠軸心愈小
(C)剪應力在表面最小,軸向應力在軸心最大
(D)剪應力在表面最大,愈靠軸心越小
參考答案
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