torsion, torqueability
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Re: torsion, torqueability
Re: torsion, torqueability -- imoo	Post Reply	Top of thread	Forum

Posted by: zekeman ® 04/27/2006, 07:56:37 Author Profile eMail author Edit

theta=TL/JG theta twist angle,radians T torque L length shaft J moment of inertia of tube cross-section G shear modulus

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Re: Re: torsion, torqueability
Re: Re: torsion, torqueability -- zekeman	Post Reply	Top of thread	Forum

Posted by: imoo ® 04/27/2006, 12:34:06 Author Profile eMail author Edit

Cheers. And finally if I was to perform a 3 point bend test on the same hollow cylinder, what would be the equation to calculate the flexural modulus, given I know the support distance, the o.d., i.d., and the force at a given deflection. Thanks in advance.

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Re: Re: torsion, torqueability
Re: Re: torsion, torqueability -- zekeman	Post Reply	Top of thread	Forum

Posted by: swearingen ® 04/27/2006, 08:46:53 Author Profile eMail author Edit

J is known as the polar moment of inertia and differs from what is commonly called the moment of inertia (first moment of area).

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