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Residual stress, fatigue and stress relief
On Apr 23, 4:11 pm, "Leo Lichtman"
wrote: wrote: This is because residual compression on one side of the bend is residual tension on the other, (clip) ^^^^^^^^^^^^^^^^ No. You are evidently applying the equations for bending stress, with symmetry about the neutral axis. If there are tensile stresses present, the bending stresses add on one side and subtract on the other. Then, if the higher value (either tensile or compressive) passes the yield point, the symmetry is gone, and the residual stress could have an effect on fatigue afterward. I'm applying the equations for static equilibrium. If some part of your spoke is under residual compression, the material around that zone must be in tension to keep it there. |
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