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I was just wondering for this question if you can see anything wrong with it. The answer in the textbook is 220MPa but i get 193MPa

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  • $\begingroup$ As a civil/structural engineer I have no idea what a "thrust" or "journal" bearing is. Perhaps one or the other provides some sort of moment restraint? $\endgroup$
    – AndyT
    Commented Oct 31, 2016 at 12:23
  • $\begingroup$ You can also use forceeffect.autodesk.com/frontend/fe.html for checking your results. $\endgroup$ Commented Nov 1, 2016 at 23:40

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The correct answer is 193 MPa as you have written. I have used SkyCiv Beam software to confirm this. It's highly unlikely you are both wrong. The shaft is essentially a beam so it's fine to use beam software for this.

SkyCiv Beam used to determine bending stress of shaft

Bending stress profile in SkyCiv

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  • $\begingroup$ How did you find stress results? $\endgroup$
    – Fennekin
    Commented Nov 15, 2016 at 11:15
  • $\begingroup$ SkyCiv Beam Software...i said that in my answer $\endgroup$
    – pauloz1890
    Commented Nov 15, 2016 at 11:17
  • $\begingroup$ Well i use sky civ for sfd and bmds. I never saw shear stress calculations $\endgroup$
    – Fennekin
    Commented Nov 15, 2016 at 11:18
  • $\begingroup$ You have to add a beam section to get stress and deflection results $\endgroup$
    – pauloz1890
    Commented Nov 15, 2016 at 11:20

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