A shaft is made of a polymer having a parabolic cross section. If it resists an internal
Chapter 6, Problem 6-195(choose chapter or problem)
A shaft is made of a polymer having a parabolic cross section. If it resists an internal moment of \(M=125 \ \mathrm{N} \cdot \mathrm{m}\), determine the maximum bending stress developed in the material (a) using the flexure formula and (b) using integration. Sketch a three-dimensional view of the stress distribution acting over the cross-sectional area. Hint: The moment of inertia is determined using Eq. A–3 of Appendix A.
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