3 ms·
Interesting... This is similar to the concerns that Vince Weldon, the Boeing engineer had over the 787 Dreamliner hull made of composites: that flaws could not
by sn41 3y ago
Interesting... This is similar to the concerns that Vince Weldon, the Boeing engineer had over the 787 Dreamliner hull made of composites: that flaws could not be found by a visual scan.
https://en.wikipedia.org/wiki/Vince_Weldon https://en.wikipedia.org/wiki/Vince_Weldon
- twic 3y agoI have a carbon fibre fork on my bike. I had a low-speed accident a few years ago, and took the bike to a mechanic to get it checked out afterwards. He said he'd checked everything, and it was fine - except the fork, which he had no way of telling if was undamaged or about to fail. I think i'll get steel next time.
- hasmolo 3y agothis isn't true anymore. you can get carbon bikes scanned after and accident to find any internal damage. Ruckus in Portland, OR is where i've shipped to before with luck, but there's a lot more local options now depending on the scene
- mrweasel 3y agoOut of curiosity, does that actually work out financially, or is it really cheap or are carbon forks really expensive?
- benglish11 3y agoYou probably wouldn’t do this for a fork. You’d just replace it. The carbon frame though can be expensive
- HankB99 3y agoOuch! Folks across the street own a bike shop and sponsor an annual criteruim. Last year there was a crash right in front of our house - touch of wheels I suppose. There's a slight hill at the end of the street and I guess the riders could have been going in excess of 30 mph or more. No one badly hurt AFAIK but one bike had a broken frame. In this case no fancy equipment was required to detect the flaw. :-/
- twic 3y agoTIL! Apparently they do it with an ultrasound instrument: https://www.olympus-ims.com/en/insight/ruckus-composites-inspects-thousands-of-bikes-with-one-ultrasonic-thickness-gage/ https://www.olympus-ims.com/en/insight/ruckus-composites-ins...
- major4x 3y agoYou may be interested in having a look at this relevant and interesting article "Nanoscopic origin of cracks in carbon fibre-reinforced plastic composites": https://www.nature.com/articles/s41598-019-55904-2 https://www.nature.com/articles/s41598-019-55904-2