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| 1045 tubing wall thickness question |  | ||
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Posted by: prometheius ® 05/04/2005, 22:11:12 Author Profile Mail author Edit |
Hi, all help is appreciated.
I would like to lift a 400-pound weight using a pulley system. The pulleys will be suspended by 1045 steel tubing. The tubing length will be 60 inches long, supported at both ends. The load will be centered. The tubing cannot be greater than 1.5 inches in diameter. Adding a safety factor of 1.5 the tubing should be able to support a 600-pound load. What will be the minimum required wall thickness of the tubing? |
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| Re: 1045 tubing wall thickness question |  | ||
| Re: 1045 tubing wall thickness question -- prometheius | Post Reply | Top of thread | Forum |
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Posted by: spears ® 05/05/2005, 15:04:05 Author Profile Mail author Edit |
An 1/8" wall thickness will result in a stress in the pipe of under 28,000 psi. This would give you a safety factor of 3 if the yield strength is 90,000 psi. Adjust the S.F. to the yield strength of the material if it is different than 90,000. This calculation does not account for any shock loadings which may occur. If shock loadings are present the stress could increase alot over the duration of the loading. Hope this helps Spears |
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