Question

igwe 3 3, (4%) For a prismatic bar in the Figure 3, under a torque T (Nm) which twists the bar, with length L (m) and radius r (m), for a small angle ? (radian): (Hint 3.1. The maximum shear stress (Tmax) is 3.2. The shear strain at the surface (Ymax) is (a) rmax degree (b) Ymax radian (c) Year-! deg/m (d) Ym", (no uni) 3.3. The shear modulus of elasticity G can be determined from known angle of twist ? (rad. length L (m), lp (m") and T (N.m) by equation, 0dp 3.4. The shear stress at the center of the bar is (a) Zero (b) , PSI (c)?Pa (d) Pa 4. (6%) According to the shear-force diagram of?mpleteam in Figure 4: 4.1 The reaction force R 4.2 The reaction force Ro 4.3 The bending moment at the support AMA Figure 4 4.4 The maximum bending moment of the beam Mma 4.5 If RA 1000 N, and b-L/2, the loading of this simple beam P is 4.6 If Rg-500 N, and a L/4, the loading of this simple beam P is

Answer 1

7%4 A93 Ang. (b) Ang b) No unit 干 中 Pns. (a) Pb - Re(shea f) - Pa Bendung @3) mome nナ at.sappor

0 a b U-S j.е. Pb _1000 咎= 1000 8000707 し4