View Single Post
      03-19-2014, 10:21 PM   #297
Suave
Major
Suave's Avatar
United_States
279
Rep
1,449
Posts

Drives: GT4 and M2 in progress
Join Date: Aug 2013
Location: Philadelphia, PA

iTrader: (0)

Quote:
Originally Posted by CanAutM3
Quote:
Originally Posted by Suave View Post
Carbon Fiber is absolutely without question many times stronger than steel and aluminum. In fact up to ten times that of steel on a good thread. Not sure your intent with your comment but it is inaccurate which leaves me confused by your last comment in which you contradict? Please explain to this engineer way you mean
You need to put this in context...

CF is stronger than aluminum and steel for an equivalent weight.

But ultimately, steel remains bloody strong. There is a good reason why the landing gears of aircrafts are still made out of steel...
Carbon fibers are classified by the tensile modulus of the fiber, below 34.8 million psi. Steel has about 29 million psi, making carbon fibers 10x stronger. Pound for pound yes CF is stronger however I believe you are making a case for volume occupied by materials for comparison in which case an equal size CF driveshaft would be compared to a steel one. Per Volume (if they both take the same space amount up): Carbon Fiber is actually still 5x stronger than steel. It is also 2x more stiff. anyway you look at it CF is more durable than steel in any scenario as demonstrated by the steel vs CF driveshaft stress test seen online. Steel is still used in landing gears because it's a cheaper material that gets the job done. However new designs out by Plane manufacturers are full of CF parts.
__________________
201X ???? Coming soon
2015 F80 M3 AW/SO - Going Going Gone!
Appreciate 1
MFNATIK3487.00