Q2(c) The steel alloy shaft having a diameter of 38 mm is used to transmit torque, T as shown in Figure Q2(c). If the allowable shear stress of the shaft is 80kPa, i)Determine the maximum torque T that can be transmitted by the shaft. ii)What would be the maximum torque T' if a 25 mm diameter hole is bored through the shaft?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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Q2(c) The steel alloy shaft having a diameter of 38 mm is used to transmit torque, T as shown
in Figure Q2(c). If the allowable shear stress of the shaft is 80kPa,
i)Determine the maximum torque T that can be transmitted by the shaft.
ii)What would be the maximum torque T' if a 25 mm diameter hole is bored through the
shaft?
Figure Q2(c.)
|Q2 c) (i)
T c
The torsion formula :7 =
J
Т (0.019)
T (0.019)^4
; Therefore, the max torque T =
x10
Nm
80
2
Q2 c) (ii) For point lying on the outside suurface of the shaft:
x10 ="(0.019)
* (0.019*-0.0125 )
; Therefore the max torque T'
Nm
80
2
Q2 c) (iii) The shear stress at point located at inner surface of shaft,
T'c
T = -=
J
) (0.0125) =
7 (0.019*-0.01254)
T'c
kPa
4.
2
2.
Transcribed Image Text:Q2(c) The steel alloy shaft having a diameter of 38 mm is used to transmit torque, T as shown in Figure Q2(c). If the allowable shear stress of the shaft is 80kPa, i)Determine the maximum torque T that can be transmitted by the shaft. ii)What would be the maximum torque T' if a 25 mm diameter hole is bored through the shaft? Figure Q2(c.) |Q2 c) (i) T c The torsion formula :7 = J Т (0.019) T (0.019)^4 ; Therefore, the max torque T = x10 Nm 80 2 Q2 c) (ii) For point lying on the outside suurface of the shaft: x10 ="(0.019) * (0.019*-0.0125 ) ; Therefore the max torque T' Nm 80 2 Q2 c) (iii) The shear stress at point located at inner surface of shaft, T'c T = -= J ) (0.0125) = 7 (0.019*-0.01254) T'c kPa 4. 2 2.
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