A.Facr=Fbar
B.Facr<Fbar
C.Facr>Fbar
D.不能确定
A.Facr=Fbar
B.Facr<Fbar
C.Facr>Fbar
D.不能确定
A.1/3
B.3
C.1/3
D.6
A.1/4
B.1/2
C.1
D.2
A.4
B.1/4
C.2
D.1/2
A.2
B.1
C.1/3
D.3
A.Facr>Fbar
B.Facr=Fbar
C.Facr<Fbar
D.不能确定
A.1/2倍
B.1倍
C.2/3倍
D.3/4倍
A.σAB=31.07MPa(拉应力),强度满足要求
B.σAB=34.08MPa(拉应力),强度满足要求
C.σAB=39.87MPa(拉应力),强度满足要求
D.σAB=42.55MPa(拉应力),强度满足要求
A.σAC=37.63MPa(拉应力),强度满足要求
B.σAC=38.99MPa(拉应力),强度满足要求
C.σAC=39.56MPa(拉应力),强度满足要求
D.σAC=41.83MPa(拉应力),强度满足要求