View Single Post
      03-20-2014, 12:06 AM   #298
Lieutenant General
CanAutM3's Avatar

Drives: 2019 M4cs
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2019 BMW M4cs  [0.00]
2018 Audi RS3  [0.00]
Originally Posted by Suave View Post
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.
How about in compression?