What are peoples thoughts.
Ive seen quite a few creeping into Boarporn’s instagram posts, Dan Mann seems to be a fan.
I understand carbon and epoxy have a greater tensile resistance to standard glass fibres.
There seem to be a fair few people looking at it as an option and maybe more so in smaller wave boards???
Thoughts???
to much flex is way better the to stiff. Carbon is over kill in a lot of cases…
Full wrap/no flex, not only (imho) will it surf poorly,but cause it has no flex it may very well snap easy… from my experiane, they snap.
Ballance
And unlike fiberglass, snap means really snap, jagged edges and all. Dale Solomonson told me about making a “guitar pick” paipo our of carbon fiber for the stiff flex. It snapped and the jagged edge nearly gutted him so he said he would never use carbon again except for strategic stiffeners
In the world of advanced composite structures; when we talk about failure modes, there are two extremes:
Aramids (and similar materials) are known for a ductile, almost metal-like failure mode. That is, they will bend and deform significantly before failure.
Carbon is at the other end, with a failure mode described as explosive. I kid you not, that is the term that’s used.
That’s also what I’ve heard about carbon parts. They’re either intact or it’s a catastrophic failure of the part, board or whatever it might be.
Do they use only carbon, or is like carbon and a light layer of glass or something?
Excellent commercial trick so…
Can play with fiber orientation to better results look at starboards surf…
Do whatever fits. But I’m still waiting to see a “Potato Chip” with Vector Net or Carbon Tape at the rails snap. I never see them coming thru my shop or people I know in the OC doing ding repair Snapped.
We Talk about this in ‘Huie-York Build thread’
Do you get some kind of brownie points if we go over there and read your thoughts on the subject??
jealous are we?
you and your ‘little’ digs at me.
keep em up.
There is more to life then surfboards
…any carbon laid vertical is a flex killer…a total rigid stiffener with almost no memory whatsoever…a full carbon rail wrap has a high degree of vertical orientation at the rail apex…it will break , long before it bends.
Heh, heh. Yes I am jealous. And your just too much fun to resist. Plus I am really curious abought those “brownie points”.
damn I really was hoping you’d bite my head off. How many brownies are we talking?
My thoughts on carbon and flex mirror most of yours but I was just wondering if they are doing it in the small wave boards for some benifit.
Maybe its due to the use of super light EPS foam with its extreme flex characteristics, and carbon acting to dampen the flex.
Interesting, what old mate said about the lack of snaps or dings through his shop.
All high-end racing sailboats use carbon spars. I know for an absolute fact some of them flex like a crazy, have seen it in person. Not to say that they have a memory (or desire to snap back into position).
I think there is a lot that could be done with directional materials. A lot of people go by hearsay (not anyone in particular), there is some real science that could answer these questions, or experimentation…
Very interesting, I know that the longboard skate decks I used to make that had carbon in them still flexed as well. Maybe it’s not as rigid as we thought.
high end sail boats use carbon masts and spars for 2 specific reasons…they are both lighter , and stiffer than aluminium…the tapered ones have a very small window , where stress borders on brakeage …they are extremely high tech in the manufacturing process compared to hand lay-up…Ive always regarded using a larger amount of carbon fibre in surfboards as overkill…it has far more strength than is required…but it does flex extremely well in the horizontal plane…the verticle has more of a tendancy to twist , rather than flex evenly over it’s length.
I don’t use carbon fibre in my boards generally…but I did get quite interested when they first started talking about the nano-tube carbon…any one have any info on where that stuff is at now ?..seems to have gone off the boil.
Composite stiffness dépend of direction off stress/direction off reinforcement fiber, and off resin modulus. Carbon by itself is a very stiff material that don’t like to stretch, that’s way it’s brittle, but it have an high fatigue résistance. Well use it can make strong light durable parts…