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Example $5-4$

The cantilevered tube shown in Figure $5-17$ is to be made of $2014$ aluminium alloy treated to obtain a specified minimum yield strength of $276$ MPa. We wish to select a stock$-$size tube from Table A$-8$ using a design factor $n_d=4.$ The bending load is $F=1\mathrm{.}75kN,$ the axial tension is $P=9\mathrm{.}0kN,$ and the torsion is $T=72N*m.$ What is the realized factor of safety?