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10" sch. 40 and sch. 60 BI pipe deflection
Re: 8" sch. 40 and sch. 80 pipe deflection -- cirivy	Post Reply	Top of thread	Forum

Posted by: koljams ® 10/10/2006, 21:56:42 Author Profile eMail author Edit

Can anyone help me in finding the deflection of 10" sch. 40 and sch. 60 BI pipe. The length is 9 meters. only both ends bearing supported. Thanks a lot.

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Re: 8" sch. 40 and sch. 80 pipe deflection
Re: 8" sch. 40 and sch. 80 pipe deflection -- cirivy	Post Reply	Top of thread	Forum

Posted by: Scooter ® 08/18/2006, 08:54:34 Author Profile eMail author Edit

The formula I use is: def=5wL^4/384EI Where: w=uniformly distr. load per unit length (in.) L^4=length of pipe to the fourth power E=modulus of elasticity (29,000,000 for steel) I=moment of inertia (I=72.49 for 8" sch.40) (I=105.7 for 8" sch.80) Hope this helps you, Thanks, Scooter

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Re: Re: 8" sch. 40 and sch. 80 pipe deflection
Re: Re: 8" sch. 40 and sch. 80 pipe deflection -- Scooter	Post Reply	Top of thread	Forum

Posted by: cirivy ® 08/18/2006, 11:47:13 Author Profile eMail author Edit

Thank you for the equation, but can you give me the deflection for each pipe? I've never worked an equation like this and I don't want to do it wrong. I'm in the process of putting together a slow turning "roller" to hold a 30' roll of stabilization cloth and I just need to know if the 8" pipe is sufficient for spooling the cloth on. Thank you Ivy

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Re: Re: Re: 8" sch. 40 and sch. 80 pipe deflection
Re: Re: Re: 8" sch. 40 and sch. 80 pipe deflection -- cirivy	Post Reply	Top of thread	Forum

Posted by: Scooter ® 08/21/2006, 12:01:59 Author Profile eMail author Edit

The sch.40 will be defelected 0.4585" (29/64") The sch.80 will be defelected 0.4779" (1/2") Sorry about the delay, I've been out of town a few days and haven't checked in till now. Hope this helps, Thanks, Scooter

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Re: Re: Re: Re: 8" sch. 40 and sch. 80 pipe deflection
Re: Re: Re: Re: 8" sch. 40 and sch. 80 pipe deflection -- Scooter	Post Reply	Top of thread	Forum

Posted by: cirivy ® 08/24/2006, 12:33:08 Author Profile eMail author Edit

Thank you very much! Ivy

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