問題詳情
9 如下圖所示之平面應力元素，σx=-50 MPa、σy=10 MPa、τxy=-40 MPa，則最大剪應力（取正值）為何？
(A) 70 MPa
(B) 60 MPa
(C) 50 MPa
(D) 40 MPa 
參考答案
無參考答案
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