Sfeel prope ller shaft is to foan&mit 45 mw 43 H2 without exceeding oa shearing sfress 750 mpa tr tuisting thru more tfan 1o lergth f o6 diameters. Compute the on per diameter if G= 83 G Pa.
Sfeel prope ller shaft is to foan&mit 45 mw 43 H2 without exceeding oa shearing sfress 750 mpa tr tuisting thru more tfan 1o lergth f o6 diameters. Compute the on per diameter if G= 83 G Pa.
Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN:9781337094740
Author:Segui, William T.
Publisher:Segui, William T.
Chapter3: Tension Members
Section: Chapter Questions
Problem 3.3.1P
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Please help me with this one. Please use the second photo as reference.
Subject: Strength of materials
Topic: Torsion

Transcribed Image Text:3- a steel pope ller shaft is to foan&mit 45mw
a4 3 H2' without exceeding a sfearing sfress
4 50 Mpa tr tuisting thru more tfan 10
in a lkrgth g o6 diameters. Compute the
po per diameter if G= 83 G Pa.

Transcribed Image Text:TORSION
Equations of compatibility – relations between stresses that are compatible with
the deformations.
Equations of equilibrium – relations between the stresses resulting from a study
of the equilibrium between externally applied loads and the internal resisting
forces over an exploratory section.
Torsion Formulas
0 = TL/JG
0- angle of rotation (radians)
T-torque (N-m)
L- length (m)
J- polar moment of inertia (m")
G- modulus of rigidity (N/m)
If we wish to express O in degrees, we multiply the right-hand member by the unit
fraction, 180°/r rad = 57.3° /rad
By replacing the product GO/L by its equivalent value T/J:
T = Tp/J
This is called the torsion formula.
The formula that determines the maximum shearing stress is a more common
form of the torsion formula. It is obtained by replacing p by the radius r of
the shaft:
Max t = Tr/J
1. The stresses must not exceed the shearing proportional limit.
2. The formulas are applicable only to circular shafts, either solid or hollow.
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