Timeline for How to calculate stiffness to weight ratio of one big tube vs two small tubes (see drawing)?
Current License: CC BY-SA 4.0
8 events
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| May 23, 2023 at 13:36 | comment | added | aehhhhmm | I saw your section on "stiffness to weight ratio" after I also posted an answer (informed by yours). In my calculation the one tube is laterally 3.7417 times (0.15877593 / 0.042434) stiffer than the two tubes of the same weight, not 4 times as you have derived. Do you see a mistake I may have made? | |
| May 23, 2023 at 13:20 | comment | added | aehhhhmm | Is the unit for the stiffness equations in your answer N/mm (assuming I use mm in the formulas for a, c and d)? | |
| May 23, 2023 at 7:44 | history | edited | Tomáš Létal | CC BY-SA 4.0 |
stiffness to weight ratio and mentioning Bernoulli beam assumption
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| May 23, 2023 at 6:31 | comment | added | aehhhhmm | I think I understood everything you wrote now. I will answer my own question here with the specific numbers I provided in the question and draw a few general conclusions, all based on your answer. Thank you! | |
| May 22, 2023 at 20:16 | history | edited | Tomáš Létal | CC BY-SA 4.0 |
adding length definition to text
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| May 22, 2023 at 20:15 | comment | added | Tomáš Létal | No, $L$ is the length, I will add it to the answer. | |
| May 22, 2023 at 18:57 | comment | added | aehhhhmm | Thanks! "L" stands for angular momentum? | |
| May 22, 2023 at 18:37 | history | answered | Tomáš Létal | CC BY-SA 4.0 |