A.彎曲變形/扭轉(zhuǎn)變形 B.扭矩/扭轉(zhuǎn)變形 C.扭矩/扭振 D.扭振/沖擊
A.過(guò)大扭轉(zhuǎn)應(yīng)力 B.過(guò)大振動(dòng) C.過(guò)大扭轉(zhuǎn)應(yīng)力集中系數(shù) D.過(guò)大附加扭轉(zhuǎn)應(yīng)力
A.低周/σs B.高周/σs/3 C.低周/σs/2 D.高周/σs/2