P1 A 40-mm diameter, 500-mm length shaft is drilled, for a part of its length L1, to a 20 mm diameter and for the remaining length L2 to a 30 mm diameter drill hole. If the allowable shear stress is 80 MPa, find the maximum power that the shaft can transmit at a speed of 200 rev/min. If the angle of twist in the length of 20 mm diameter drill hole is equal to that in the 30 mm diameter drill hole, find the length of the shaft that has been drilled to 20 mm and 30 mm diameter.
P1 A 40-mm diameter, 500-mm length shaft is drilled, for a part of its length L1, to a 20 mm diameter and for the remaining length L2 to a 30 mm diameter drill hole. If the allowable shear stress is 80 MPa, find the maximum power that the shaft can transmit at a speed of 200 rev/min. If the angle of twist in the length of 20 mm diameter drill hole is equal to that in the 30 mm diameter drill hole, find the length of the shaft that has been drilled to 20 mm and 30 mm diameter.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:P1
A 40-mm diameter, 500-mm length shaft is drilled, for a
part of its length L1, to a 20 mm diameter and for the
remaining length L2 to a 30 mm diameter drill hole. If
the allowable shear stress is 80 MPa, find the maximum
power that the shaft can transmit at a speed of 200
rev/min.
If the angle of twist in the length of 20 mm diameter
drill hole is equal to that in the 30 mm diameter drill
hole, find the length of the shaft that has been drilled to
20 mm and 30 mm diameter.
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