[python] Re: Python report, and circular tubes
- From: Dirk Bonne <dirk_bonne@xxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Tue, 01 Nov 2005 19:46:16 +0100
On 10/31/2005 10:08 PM, Sam v. Herwaarden wrote:
>>In principle 100kg load is enough, but what happens when riding over a
>>pothole. I would asume, it in a way loads up certain (other) parts of the
>>bike. But how big a forces can be expected here? So I design the bike to
>>hold for what, 200kg? 300kg? a ton? Obviously the more safety the more heavy
>>the bike will get.
>>
>>and opens a path towards a composite fabrication. Carbon laminated, or
>>carbon pipes glued in aluminium inserts ?
>> Please, go ahead >:-)
>>
>> Dirk
>>
>>
>http://www.sheldonbrown.com/rinard/carbon_fiber.htm
>in this article damon rinard describes really nicely how he tested his
>own homebuilt carbon bicycle's strength - he took 600lbs (300kgs) as a
>guideline, maybe it's useful to someone (or the method he uses, which
>is really nice and simple).
>
>
Thank you for this!
300kg feels probably a little too little (I coudl do amazingly
everything in 10x1, and make a very light recumbent), but at least it is
an indication for what kind of numbers I try out.
Pitty the links in his pages are brkoen (to old probably).
Dirk
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