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PROBLEM (9.94) Redo Prob. 9.93 if the shaft AB is made of an ASTM- A47 gray cast iron (see
Table B.4), applying the maximum normal stress theory of failure.
SOLUTION
Refer to solution of Prob. 9.93.
From Table B.4: 25
all u ksi
σ
σ
==
Equation (9.32):
1
22
3
16
[( )]
all
dMMT
πτ
=++
Substituting the numerical values:
1
22
3
16
[ (2.186 (2.186) (1.2) )]
(25)
d
π
=++
0.984 .in=
1
/
1
100%