What is your opinion on how safe a crashed carbon bike is to ride? In particular its a HM 066SL frame, there are no cracks that I can see. The frame is unpainted with matt clear coat so its hard to see if there is a ripple to paint from stresses to the carbon.
Any advice?
crashed carbon
Moderator: robbosmans
There are three ways to detect cracks in a CFRP structure:
1- connect the frame to a DC and scan it with thermograph equipment. Pretty reliable. Cracks and discontinuities reveal as heat sources as the resistance increases in those areas.
2- X-Ray . 100% reliable but expensive.
3- mechanical test: loading the frame, looking for weak areas that don't behave as expected and tapping it with a small hammer in search of abnormal absorption of vibration. Less reliable and very dependent on the skills and experience I the operator.
Use common sense. You know better than anyone how hard was the crash and how hard the bike is going to be ridden.
1- connect the frame to a DC and scan it with thermograph equipment. Pretty reliable. Cracks and discontinuities reveal as heat sources as the resistance increases in those areas.
2- X-Ray . 100% reliable but expensive.
3- mechanical test: loading the frame, looking for weak areas that don't behave as expected and tapping it with a small hammer in search of abnormal absorption of vibration. Less reliable and very dependent on the skills and experience I the operator.
Use common sense. You know better than anyone how hard was the crash and how hard the bike is going to be ridden.
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You didn't read the other thread then.
Take it to a shop.
They'll write it off, value it, you can then add it to your claim.
Unless they have a carbon expert to hand (very unlikely), in which case they can give you chapter and verse.
Take it to a shop.
They'll write it off, value it, you can then add it to your claim.
Unless they have a carbon expert to hand (very unlikely), in which case they can give you chapter and verse.
I don't think invisible damage is very common in carbon parts.
