Carbon Nanotube Bike Frame

[bicycle_disciple]

Hi,

http://cozybeehive.blogspot.com/2008/03/carbon-nano-tube-bicycle-technology.html

Experts in the materials science field are welcome to discuss the
advantages of this material. Btw, if you aren't interested in opening
the link, thats fine but keep unnecessary comments to yourself.


Ron
http://cozybeehive.blogspot.com

[RicodJour]

On Mar 31, 10:29 pm, bicycle_disciple <1.crazyboy.o...@gmail.com>
wrote:
>
> http://cozybeehive.blogspot.com/2008/03/carbon-nano-tube-bicycle-tech...
>
> Experts in the materials science field are welcome to discuss the
> advantages of this material. Btw, if you aren't interested in opening
> the link, thats fine but keep unnecessary comments to yourself.

Sure...if you keep unnecessary comments about unnecessary comments to
yourself. :)~

R

[Frank W. Marrs III]

i'm a soon-to-be Ga. Tech graduate with some experience with aerospace
grade composites, which some bikes (like the BMCs) are certainly
comparable to, while others are not. also, i'd like to note that Easton
and BMC have been pushing this technology for at least three years.

carbon nanotubes are exciting because lab-grade materials have produced
unprecedented yield strengths. however, actual production of the
material for manufacturing purposes has proven difficult (anyone
remember the space elevator?). thus, carbon fibers are still utilized
as load-carrying members in the composite. my understanding of the
easton material is that the nanotubes disrupt crack propagation in the
matrix, improving the material's toughness. since none of the nanotubes
are aligned in one particular direction and all are significantly
shorter than the reinforcing fibers, it is unlikely that they improve
the strength of the material significantly. also, it is typical (in
almost all materials) that improved toughness means lower strength and
stiffness values. so, it is possible that the easton material is the
same strength or even weaker than other carbon fiber composites. the
BMC frames *are* a little heavier than some other high-end full carbon
frames...

as far as fatigue goes, composites in general are typically superior
metals. fatigue of the carbon material is not an issue; it is one of
its strengths. however, many carbon frames have joints and other bonds
(e.g. bottom bracket shells). these are the areas of concern for
fatigue. however, the bonds at these key locations are a function of
the manufacturing process. in other words, fatigue of carbon bicycles
is a result of how they're put together, not the material itself. the
material concerns with carbon fiber (esp. as compared to metals) are
impact strength -- since the tubes are weak through the thickness -- and
other failure modes, like delamination, absorption of moisture, UV
degredation, etc. i don't know how companies address these issues, but
the carbon bikes seem to have become much more reliable in these
respects. BMC appears to have addressed the crash-worthiness of their
bikes in improving toughness of the composite used, although i doubt
most buyers are going to see it this way. i think it's mostly a
marketing ploy to get people to buy their high-end carbon bike over
another company's.

frank

bicycle_disciple wrote:
> Hi,
>
> http://cozybeehive.blogspot.com/2008/03/carbon-nano-tube-bicycle-technology.html
>
> Experts in the materials science field are welcome to discuss the
> advantages of this material. Btw, if you aren't interested in opening
> the link, thats fine but keep unnecessary comments to yourself.
>
>
> Ron
> http://cozybeehive.blogspot.com

[Chalo]

bicycle_disciple wrote:
>
> http://cozybeehive.blogspot.com/2008/03/carbon-nano-tube-bicycle-tech...
>
> Experts in the materials science field are welcome to discuss the
> advantages of this material. Btw, if you aren't interested in opening
> the link, thats fine but keep unnecessary comments to yourself.

That "space elevator" guy also talks about carbon nanotubes as if they
already existed in industrially useful quantities.

When such materials *are* available in industrially useful quantities,
I'm willing to wager that the space elevator dude will get his long
before any bike manufacturers get theirs.

Furthermore, I'm willing to wager that the amount of buckytube, if
any, in that bike frame is comparable to the pinky-nail sized toots of
Peruvian marching powder currently being snuffled up by the bike's
marketing team.

Chalo

[datakoll]

I've shoveld a lotta **** in my time but this here BS takes the cake

[datakoll]

"Until recently, CNT use has been limited due to the complex,
dangerous, and expensive methods for their production. Benavides's
technology represents a simpler, safer, and much less expensive
manufacturing method."
http://www.medicalnewstoday.com/articles/88894.php
http://www.physorg.com/news123782520.html

imagine, a frame one atom thick. Imagine fusion.

Imagine a gravity-Doppler cluster theory of reality ?

Imagine extraterrestrials

In the early 1950's, water could be walked on here there were so many
fish. Today, a blink later looking across water holding noooooo fish
nada and thinking about global warming is, well, revelatory.
Deus ex with your poi ?

[Bill Sornson]

RicodJour wrote:
> On Mar 31, 10:29 pm, bicycle_disciple <1.crazyboy.o...@gmail.com>
> wrote:
>>
>> http://cozybeehive.blogspot.com/2008/03/carbon-nano-tube-bicycle-tech...
>>
>> Experts in the materials science field are welcome to discuss the
>> advantages of this material. Btw, if you aren't interested in opening
>> the link, thats fine but keep unnecessary comments to yourself.
>
> Sure...if you keep unnecessary comments about unnecessary comments to
> yourself. :)~

Was that necessary?

Bill "commenting" S.

[Ben C]

On 2008-04-01, Frank W. Marrs III <frank.marrs@gatech.edu> wrote:
> i'm a soon-to-be Ga. Tech graduate with some experience with aerospace
> grade composites, which some bikes (like the BMCs) are certainly
> comparable to, while others are not. also, i'd like to note that Easton
> and BMC have been pushing this technology for at least three years.
>
> carbon nanotubes are exciting because lab-grade materials have produced
> unprecedented yield strengths. however, actual production of the
> material for manufacturing purposes has proven difficult (anyone
> remember the space elevator?). thus, carbon fibers are still utilized
> as load-carrying members in the composite. my understanding of the
> easton material is that the nanotubes disrupt crack propagation in the
> matrix, improving the material's toughness. since none of the nanotubes
> are aligned in one particular direction and all are significantly
> shorter than the reinforcing fibers, it is unlikely that they improve
> the strength of the material significantly. also, it is typical (in
> almost all materials) that improved toughness means lower strength and
> stiffness values. so, it is possible that the easton material is the
> same strength or even weaker than other carbon fiber composites. the
> BMC frames *are* a little heavier than some other high-end full carbon
> frames...
>
> as far as fatigue goes, composites in general are typically superior
> metals. fatigue of the carbon material is not an issue; it is one of
> its strengths. however, many carbon frames have joints and other bonds
> (e.g. bottom bracket shells). these are the areas of concern for
> fatigue. however, the bonds at these key locations are a function of
> the manufacturing process. in other words, fatigue of carbon bicycles
> is a result of how they're put together, not the material itself. the
> material concerns with carbon fiber (esp. as compared to metals) are
> impact strength -- since the tubes are weak through the thickness -- and
> other failure modes, like delamination, absorption of moisture, UV
> degredation, etc. i don't know how companies address these issues, but
> the carbon bikes seem to have become much more reliable in these
> respects. BMC appears to have addressed the crash-worthiness of their
> bikes in improving toughness of the composite used, although i doubt
> most buyers are going to see it this way. i think it's mostly a
> marketing ploy to get people to buy their high-end carbon bike over
> another company's.
>
> frank
[...]

Interesting information, thanks.

[jim beam]

Frank W. Marrs III wrote:
> i'm a soon-to-be Ga. Tech graduate with some experience with aerospace
> grade composites, which some bikes (like the BMCs) are certainly
> comparable to, while others are not. also, i'd like to note that Easton
> and BMC have been pushing this technology for at least three years.
>
> carbon nanotubes are exciting because lab-grade materials have produced
> unprecedented yield strengths. however, actual production of the
> material for manufacturing purposes has proven difficult (anyone
> remember the space elevator?). thus, carbon fibers are still utilized
> as load-carrying members in the composite. my understanding of the
> easton material is that the nanotubes disrupt crack propagation in the
> matrix, improving the material's toughness. since none of the nanotubes
> are aligned in one particular direction and all are significantly
> shorter than the reinforcing fibers, it is unlikely that they improve
> the strength of the material significantly. also, it is typical (in
> almost all materials) that improved toughness means lower strength and
> stiffness values. so, it is possible that the easton material is the
> same strength or even weaker than other carbon fiber composites. the
> BMC frames *are* a little heavier than some other high-end full carbon
> frames...
>
> as far as fatigue goes, composites in general are typically superior
> metals. fatigue of the carbon material is not an issue; it is one of
> its strengths. however, many carbon frames have joints and other bonds
> (e.g. bottom bracket shells). these are the areas of concern for
> fatigue. however, the bonds at these key locations are a function of
> the manufacturing process. in other words, fatigue of carbon bicycles
> is a result of how they're put together, not the material itself. the
> material concerns with carbon fiber (esp. as compared to metals) are
> impact strength -- since the tubes are weak through the thickness -- and
> other failure modes, like delamination, absorption of moisture, UV
> degredation, etc. i don't know how companies address these issues, but
> the carbon bikes seem to have become much more reliable in these
> respects. BMC appears to have addressed the crash-worthiness of their
> bikes in improving toughness of the composite used, although i doubt
> most buyers are going to see it this way. i think it's mostly a
> marketing ploy to get people to buy their high-end carbon bike over
> another company's.
>
> frank

heretic. this is r.b.t. on r.b.t, technology is only taken on faith -
carbon is evil and steel is good. death to all who dare trying to
introduce polluting facts to a forum that may undermine the bleatings of
the opinionated [but underinformed].



>
> bicycle_disciple wrote:
>> Hi,
>>
>> http://cozybeehive.blogspot.com/2008/03/carbon-nano-tube-bicycle-technology.html
>>
>>
>> Experts in the materials science field are welcome to discuss the
>> advantages of this material. Btw, if you aren't interested in opening
>> the link, thats fine but keep unnecessary comments to yourself.
>>
>>
>> Ron
>> http://cozybeehive.blogspot.com

[Ozark Bicycle]

On Apr 1, 1:22 am, datakoll <datak...@yahoo.com> wrote:
> I've shoveld a lotta **** in my time but this here BS takes the cake

Just wait 'til a bike company with a highly paid Professional Bull****
Team, such as Trek, gets a chance with this stuff. If Trek can make so
much hay out of a cost-cutting BB shell design (the "new" Madone),
just think of what they can do with Nanotubes!

[datakoll]

ET's say they gotta settle with Brandt

[unforgiven99@juno.com]

On Apr 1, 7:15 am, Ozark Bicycle
<bicycleatel...@ozarkbicycleservice.com> wrote:
> On Apr 1, 1:22 am, datakoll <datak...@yahoo.com> wrote:
>
> > I've shoveld a lotta **** in my time but this here BS takes the cake
>
> Just wait 'til a bike company with a highly paid Professional Bull****
> Team, such as Trek, gets a chance with this stuff. If Trek can make so
> much hay out of a cost-cutting BB shell design (the "new" Madone),
> just think of what they can do with Nanotubes!

I don't know. They weren't able to sell too many people on the magic
of Boron.

[datakoll]

"as far as fatigue goes, composites in general are typically superior
metals"

yaaaaawwwnn who said that? Sea Ray? Saturn ?? Corvette Owners Club !!

as far as carbon goes, we need consider carbon's carbon-energy
footprint.
if you see a carbon rider-go over and piss onem.

[Tom Sherman]

datakoll aka gene daniels wrote:
> ET's say they gotta settle with Brandt
>

ET phone Brandt.

--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful

[Werehatrack]

My newsreader's column breaks turned the subject line into "EXTRA
TERRESTRIALS LAND AT KENNEDY SPA", which was ever so much more amusing
than the full one.

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

[Colin Campbell]

datakoll wrote:
> ET's say they gotta settle with Brandt
>

[Tom Sherman]

datakoll aka gene daniels wrote:
>
> "as far as fatigue goes, composites in general are typically superior
> metals"
>
> yaaaaawwwnn who said that? Sea Ray? Saturn ?? Corvette Owners Club !!
>
> as far as carbon goes, we need consider carbon's carbon-energy
> footprint.
> if you see a carbon rider-go over and piss onem.

All the cyclists I have seen have been carbon based lifeforms eating
carbon based foods.

--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful

[* * Chas]

"datakoll" <datakoll@yahoo.com> wrote in message
news:32fbf69e-8a4e-48dd-b8d0-c1c7ec8c1c1e@l42g2000hsc.googlegroups.com...
>
>
> "as far as fatigue goes, composites in general are typically superior
> metals"
>

Composites aren't metals as such. There are many forms of metal matrix
composites but they are metals with non metallic inclusions such as
silicon carbide or aluminum oxide particles added to them or composites
that include metal.

Carbon fiber reinforced composites are most often made of epoxy resin that
encapsulates the carbon fibers much like the processes used to make
fiberglass.

Chas.

[Werehatrack]

On Tue, 01 Apr 2008 22:00:18 -0500, Tom Sherman
<sunsetss0003@REMOVETHISyahoo.com> may have said:

>datakoll aka gene daniels wrote:
>> ET's say they gotta settle with Brandt
>>
>
>ET phone Brandt.

Isn't he in Alaska at the Iditarod finish?


--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

[datakoll]

On Apr 2, 1:26*am, Werehatrack <raul...@earthWEEDSlink.net> wrote:
> My newsreader's column breaks turned the subject line into "EXTRA
> TERRESTRIALS LAND AT KENNEDY SPA", which was ever so much more amusing
> than the full one.
>
> --
> My email address is antispammed; pull WEEDS if replying via e-mail.
> Typoes are not a bug, they're a feature.
> Words processed in a facility that contains nuts.

God lives here

[Tom Sherman]

* * Chas wrote:
> "datakoll" <datakoll@yahoo.com> wrote in message
> news:32fbf69e-8a4e-48dd-b8d0-c1c7ec8c1c1e@l42g2000hsc.googlegroups.com...
>>
>> "as far as fatigue goes, composites in general are typically superior
>> [to?] metals"
>>
>
> Composites aren't metals as such. There are many forms of metal matrix
> composites but they are metals with non metallic inclusions such as
> silicon carbide or aluminum oxide particles added to them or composites
> that include metal.
>
> Carbon fiber reinforced composites are most often made of epoxy resin that
> encapsulates the carbon fibers much like the processes used to make
> fiberglass.
>
My Kingdom for a "to"?

--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful

[Ben C]

On 2008-04-02, * * Chas <verktygjunk@aol.spamski.com> wrote:
>
> "datakoll" <datakoll@yahoo.com> wrote in message
> news:32fbf69e-8a4e-48dd-b8d0-c1c7ec8c1c1e@l42g2000hsc.googlegroups.com...
>>
>>
>> "as far as fatigue goes, composites in general are typically superior
>> metals"
>>
>
> Composites aren't metals as such.

I think it was just a typo for "superior to metals".

[Tom Sherman]

datakoll aka gene daniels wrote:
> On Apr 2, 1:26 am, Werehatrack <raul...@earthWEEDSlink.net> wrote:
>> My newsreader's column breaks turned the subject line into "EXTRA
>> TERRESTRIALS LAND AT KENNEDY SPA", which was ever so much more amusing
>> than the full one.
>>
>> --
>> My email address is antispammed; pull WEEDS if replying via e-mail.
>> Typoes are not a bug, they're a feature.
>> Words processed in a facility that contains nuts.
>
> God lives here

Dog lives below me.

--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful

[andresmuro@aol.com]

On Apr 2, 5:06 am, unforgive...@juno.com wrote:
> On Apr 1, 7:15 am, Ozark Bicycle
>
> <bicycleatel...@ozarkbicycleservice.com> wrote:
> > On Apr 1, 1:22 am, datakoll <datak...@yahoo.com> wrote:
>
> > > I've shoveld a lotta **** in my time but this here BS takes the cake
>
> > Just wait 'til a bike company with a highly paid Professional Bull****
> > Team, such as Trek, gets a chance with this stuff. If Trek can make so
> > much hay out of a cost-cutting BB shell design (the "new" Madone),
> > just think of what they can do with Nanotubes!
>
> I don't know. They weren't able to sell too many people on the magic
> of Boron.

I don't know about boron, but my bike is powered by moron.

[datakoll]

try Turtle Mound Road, Canavarel National Seashore or Smyrna beach, FL

http://maps.google.com/maps?q=smyrna+beach,+fl&ie=UTF8&oe=UTF-8&ll=28.857989,-80.77613&spn=0.005027,0.010836&z=17&iwloc=addr

that's one of those damn google map hyperlinks.

the road ends in a culdesac on a shell mound. a realtively un-quarried
mound

further south where I live, same Indians maybe died from smallpox.
Black settlers after civil war but a hurricane wiped the barrier
island clean. 20 years ago, Cocoa was a village.

[datakoll]

Tom, move to SF before its too late.
I was speaking of the weather. The weather is excellent beyond
comprehension. I live in the back. every walk out is omigod whatta
beautiful day. then ride out into the wide open spaces and WOW
it's really unbelievable.
The beach path goes down a lane of Madagascar palms and roses of
Sharon(?) into a Laotze tunnel of brazilian pepper. When in the tunnel
the Atlantic appears as a flash.
Today the Gulf stream was in first time this year with sargassum,
rolling 6-7 footers, and ? 72 water.
Our beach is 300' wide, all 4' above hi tide line.
INCROYABLE !

[Werehatrack]

On Wed, 2 Apr 2008 20:00:17 -0700 (PDT), datakoll <datakoll@yahoo.com>
may have said:

>Tom, move to SF before its too late.
>I was speaking of the weather. The weather is excellent beyond
>comprehension. I live in the back. every walk out is omigod whatta
>beautiful day. then ride out into the wide open spaces and WOW
>it's really unbelievable.
>The beach path goes down a lane of Madagascar palms and roses of
>Sharon(?) into a Laotze tunnel of brazilian pepper. When in the tunnel
>the Atlantic appears as a flash.
>Today the Gulf stream was in first time this year with sargassum,
>rolling 6-7 footers, and ? 72 water.
>Our beach is 300' wide, all 4' above hi tide line.
>INCROYABLE !

You must mean San Francisco. I grew up in South Florida, and I
wouldn't go back there for Donald Trump's net worth as a monthly
salary. I moved to Houston for the cool, dry climate, the marvelous
change of seasons, the fact that there's some terrain (instead of a
dead flat sodden swamp) and the relatively civilized and free-flowing
traffic patterns. By comparison to Miami, Houston has all of those
advantages and more. Oh, and lower taxes, and more affordable
housing, and better property value retention in a recession...

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

[Tom Sherman]

datakoll aka gene daniels wrote:
> Tom, move to SF before its too late.

And miss the wonderful snow/salt slush and resulting potholes?

Besides, it is not that bad here - RBT regulars Andrew Muzi and Jay
Bollyn ride their bicycles to work all year around.

> I was speaking of the weather. The weather is excellent beyond
> comprehension. I live in the back. every walk out is omigod whatta
> beautiful day. then ride out into the wide open spaces and WOW
> it's really unbelievable.

But did you get 40-cm of snow on the first day of spring?

> The beach path goes down a lane of Madagascar palms and roses of
> Sharon(?) into a Laotze tunnel of brazilian pepper. When in the tunnel
> the Atlantic appears as a flash.
> Today the Gulf stream was in first time this year with sargassum,
> rolling 6-7 footers, and ? 72 water.
> Our beach is 300' wide, all 4' above hi tide line.
> INCROYABLE !
>
I can usually have the local beach to myself (except for the gulls) from
October through April. Can you say that for Florida? ;)

--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful

[Tom Sherman]

"jim beam" wrote:
>
> heretic. this is r.b.t. on r.b.t, technology is only taken on faith -
> carbon is evil and steel is good. death to all who dare trying to
> introduce polluting facts to a forum that may undermine the bleatings of
> the opinionated [but underinformed].
>
butbutbut, does it not take carbon to turn iron into steel?

--
Tom Sherman - Holstein-Friesland Bovinia
The weather is here, wish you were beautiful

[Bruce Gilbert]

"Werehatrack" <rault00@earthWEEDSlink.net> wrote in message
news:o2q8v31nspm333sir2mveu0l7t7mgqe84q@4ax.com...
> On Wed, 2 Apr 2008 20:00:17 -0700 (PDT), datakoll <datakoll@yahoo.com>
> may have said:
>
> >Tom, move to SF before its too late.
> >I was speaking of the weather. The weather is excellent beyond
> >comprehension. I live in the back. every walk out is omigod whatta
> >beautiful day. then ride out into the wide open spaces and WOW
> >it's really unbelievable.
> >The beach path goes down a lane of Madagascar palms and roses of
> >Sharon(?) into a Laotze tunnel of brazilian pepper. When in the tunnel
> >the Atlantic appears as a flash.
> >Today the Gulf stream was in first time this year with sargassum,
> >rolling 6-7 footers, and ? 72 water.
> >Our beach is 300' wide, all 4' above hi tide line.
> >INCROYABLE !
>
> You must mean San Francisco. I grew up in South Florida, and I
> wouldn't go back there for Donald Trump's net worth as a monthly
> salary. I moved to Houston for the cool, dry climate, the marvelous
> change of seasons, the fact that there's some terrain (instead of a
> dead flat sodden swamp) and the relatively civilized and free-flowing
> traffic patterns. By comparison to Miami, Houston has all of those
> advantages and more. Oh, and lower taxes, and more affordable
> housing, and better property value retention in a recession...
>
> --
Yeah, that sure is Houston alright! LoL...
$7,000 electric bills and bayou rot everywhere. Nothing like doing the crits
in Memorial Park at 105 degrees. At least you don't have to worry about
sliding in the turns, During races the pavement is so hot, the asphalt melts
and just piles up on the sidewalls of your tires. Summer in Houston is just
grand. I agree about the civilized drivers. This year I'm having a shotgun
scabbard made to fit on my front fork. I figure a hogleg should keep things
real civilized on the evening rides downtown... the only question is whether
it will be race start legal. Probably be alright if it is nylon, officials
seem to have a problem with a hand-tooled leather holster on the bike. Must
be a taste level problem...

Bruce

[datakoll]

taste level? Fla has the highest crime rate and lowest level of
intelligence. Ehile this area is Mayberry, spell that Maybury. NASA
doesn't run the place the mob does. So mush so iznot out of line to
write the mob rums NASA facility. I am surroundead by aggressive peter
principled prostitute nincompoops 24 hours a day.
This afternoon while working om muh truck, I had to fight off weirdos
and whores 6-7 times in 3 hours. IN A GATED COMMUNITY.
pass the dry wall powder - I'll pour it on the grass.

that's why the ET wera looking for JB.