Timeline for shear formula confusion
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 26, 2016 at 23:17 | comment | added | alephzero | In Eq. (7-2), $A'$ is not a constant - it depends on the value of $\bar y'$. You are almost correct - the shear varies parabolically for a section with constant width. For an arbitrary shaped section (e.g. a circular rod, or an I-beam) the variation is not parabolic, but it does satisfy Eq. (7-2). | |
| Nov 26, 2016 at 11:18 | comment | added | kelvinmacks | ok , can you explain why the shear stress is varied linearly over the part ? if the stress varies linearly over a section , then it's normal stress, right ? from my book , shear stress only varies parabolically over a section , where the shear stress is max at the neutral axis , 0 at the top and the bottom part | |
| Nov 26, 2016 at 10:54 | history | answered | Wasabi | CC BY-SA 3.0 |