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| Square Tube rotated 45deg Inertia |  | ||
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| Posted by: chris.tucker ® 03/12/2010, 13:29:37 Author Profile eMail author Edit |
i am trying to calculate the moment of Inertia of a TS3x3x.375 steel tube at a 45 deg angle
the equation i dirived is 2/3*(a^3)*t a being the tube size and t the thickness i'm not sure that this is correct the steel hand book list the Inertia at 3.78 not rotated does anyone have a good equation
thanks
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| : Square Tube rotated 45deg Inertia -- chris.tucker | Post Reply | Top of thread | Engineering Forum |
| Posted by: zekeman ® 03/12/2010, 15:34:00 Author Profile eMail author Edit |
Yes, it is correct |
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| : Square Tube rotated 45deg Inertia -- chris.tucker | Post Reply | Top of thread | Engineering Forum |
| Posted by: RWOLFEJR ® 03/12/2010, 14:05:34 Author Profile eMail author Edit |
If TS 3x3x.375 tube is square tube?... then Moment of Inertia is
(a4 -b4) divided by 12 "a" being outside length of side "b" being inside length of side. So... 81- 25.63 = 55.37 divided by 12 = 4.6 (I) = 4.6 Same moment of Inertia (I) laying flat, as kicked 45 degrees. The section modulous (Z) is the only aspect that will change but you won't need that for determining deflection. There are a bunch of calculators on this site for deflection with varying supports and locations of loads etc. Good Luck,
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