bicycle frames
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Re: bicycle frames
Re: bicycle frames -- spgautam	Post Reply	Top of thread	Forum

Posted by: kvkmurty ® 06/26/2005, 13:05:29 Author Profile Mail author Edit

This is what I think - Because a circle that fits in a square/rectangle or most other geometries has lesser area than the section in which it is fit. This reduces the weight and the support strength still will be enough for the frame.

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Re: bicycle frames
Re: Re: bicycle frames -- kvkmurty	Post Reply	Top of thread	Forum

Posted by: spgautam ® 06/26/2005, 13:24:11 Author Profile Mail author Edit

Dear friends i got this tory on net and this has clarified this question :- somewhere in early phase of bike emegence there was a bike racing comptetion . one of the manufacturers won that race twice . third time what he did is he made frame of aluminium with a very powerfull engine thinking that being lighter aluminium will do the job . he did all bending stress calculations and used suitable size . but during the race bike failed away . when reason was sought for this it was found that its not the bending stress but the real mischief is stiffness and in case of aluminium modular stiffness was less and eventhough frame was cabale of dealing up with bending stress of engine +driver , it failed due to less stiffness . another point if you will observe closley is that in bicycles frame is made in tube shape . ofcourse one reason is aerodynamic property but the prime one is stiffness . tubular shape is more stiffer than others. hopefully question and answer both are interesting

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