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Re: Beam Deflection formula Verification
Re: Beam Deflection formula Verification -- specdor	Post Reply	Top of thread	Forum

Posted by: Kelly_Bramble ® testing123 01/02/2006, 10:17:51 Author Profile Mail author Edit

The equations are from 27th edition Machinery's and correlated by Roarks's Formulas for Stress and Strain, 7th edition. There is some information missing from the page as follows: If l is between 2c and 2.449c, there will be a maximum deflection upward at points sqr[ 3( .25 * l^2 - c^2 )] on both sides of the center, which are, -[W/(96EIL][6c^2 - l^2]^2. Yes I agree, the calculated deflection seems low. I have not verified that the calculator is calculating right. The page is on the review list. Modified by Kelly_Bramble at Mon, Jan 02, 2006, 10:21:42

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Re: Beam Deflection formula Verification
Re: Re: Beam Deflection formula Verification -- Kelly_Bramble	Post Reply	Top of thread	Forum

Posted by: yates ® 01/02/2006, 11:46:47 Author Profile Mail author Edit

For an evenly distributed load on a beam, the two support positions which produce the same deflection at end and in middle is when the two supports are 0.544L apart i.e. when each support is situated at 0.228L from each end. Check it out, it's always true.

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