問題詳情
四、鋼棒 ABC 在 A 點以光滑插銷固定，AB 及 BC 長度分別為 50 cm 及 30 cm，PC、QB為兩根半徑 2 mm 之鋼索，鋼索之楊氏係數為 200 GPa，降伏強度為 500 MPa，未受力下長度為 50 cm，假設鋼棒為剛體，鋼索材料為彈性-完全塑性（即達到降伏點後只變形而應力不再增加），鋼棒受一強度為 f N/m 之均佈力作用如圖所示。試求：
⑴使鋼索 QB 剛好達到降伏之均佈力強度。（10 分）
⑴使鋼索 QB 剛好達到降伏之均佈力強度。（10 分）
參考答案
答案：A
難度：簡單0.860208
統計：A(1403),B(185),C(28),D(15),E(0) #
個人：尚未作答書單：迅吃V.S.口吃、CP的語言障礙
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