A 1.25-m-long steel angle has an L127 x 76 x 6.4 cross
Chapter 3, Problem 3.135(choose chapter or problem)
A 1.25-m-long steel angle has an \(\text { L127 } \times 76 \times 6.4\) cross section. From Appendix C we find that the thickness of the section is 6.4 mm and that its area is \(1250 \mathrm{~mm}^{2}\). Knowing that \(\tau_{\text {all }}=60 \mathrm{MPa}\) and that G = 77.2 GPa, and ignoring the effect of stress concentrations, determine (a) the largest torque T that can be applied, (b) the corresponding angle of twist.
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