Unformatted text preview: 3.114 The solid circular shaft AB is made of a steel which is assumed to be elastoplastic with G = 11.2 X 10 6psi and I}, = 21 ksi. The torque T is increased until
the radius of the elastic core is 0.25 in. Determine the maximum residual shearing
stress in the shaft aﬁer the torque T has been removed. 3.121 Aﬂerthe solid shaiiof Prob. 3.1 14 has been loaded and unloaded as described
in that problem, a torque TI of sense opposite to the original torque T is applied to the
shalt. Assuming no change in the value of ry, determine the magnitude T, of the
torque 'l‘I required to initiate yield in this second loading and compare it with the
SOLUTION magnitude T); of the torque T which caused the shaft to yield in the original loading. PROBLEM 3.121 From +h€ soﬂu‘How +0 PROBLEM 3.114 C, =’ 0.751%) L: 2'41.” 121 = 1’ km.) J 1' 04?701 in? The residual s'l'ress ail” p=c.. is Tm? 6.7+ ks! F01" paneling in He a!) 05:42 Sense?) 'He change (n s‘ims +0
Pl‘oaidce ”809*“sz yiQIJimj is 1’, = 11. 7.1., 2: 974 = 19.25 ksi __ Tc 1’. _(o.4’17o:)(l'1.2é)__ , .
{1' :TL’ ‘7‘. '“ 'JE  0.737  Q.‘t$,k.p.m. a! '1; = 95751:. = W = I332 kipin. ...
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