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16.有一均質等截面的圓桿,直徑為 20mm,長度為 400mm,受到軸向拉力作用,長度變成 402.5mm,直徑變成 19.95mm,試求此材料之蒲松氏比(Poisson’s ratio)為何 ?
問題詳情
16.有一均質等截面的圓桿,直徑為 20mm,長度為 400mm,受到軸向拉力作用,長度變成 402.5mm,直徑變成
19.95mm,試求此材料之蒲松氏比(Poisson’s ratio)為何
?
(A) 0.25
(B) 0.30
(C) 0.33
(D) u0004 0.40
參考答案
上一篇 :
15.以偏位法(offset method)決定材料之降伏應力時,工程上通常將應力-應變曲線直線段的部分平行偏移多少 ? (A) 0.2 (B) 0.02 (C) 0.002 (D) \u00
下一篇 :
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