Huh? what does the winter of 2018 have to do with Alberto Contador when he was racing? That was an odd statement, must be the dope talking...again.
I emailed one guy who inferred that his rather massive failure was from the material and his response was - "that car barely touched me".
The worm squirms again. Isn't it time for you to use another bunch of initials? You still have time to climb l'Alpe d'Huez a couple of times before 5 pm on your video game.Sure you did...rrrriiiigggghhhhtttt!!!
Just like Contadope rode tubeless tires! What a jerk.
Say...with your bazillion MBPS connection maybe you can find yourself a brain. And some character to go with it.
It is certainly easy to show you what a stupid ass you are. There is nothing in your brain to hide your lack of IQ.The speed at which you lie is even faster.
Haven't you claimed an engineering background?... titanium - are in general simply so stiff that they must be tuned with tire sizes and pressures.
Aluminum ... are in general simply so stiff that they must be tuned with tire sizes and pressures.
Really, what does Young's Modulus have to do with proper frame design?Haven't you claimed an engineering background?
The Young's modulus (basically how much a material will stretch for a given load and cross-section) of Ti is roughly half that of steel.
Meaning that Ti is pretty much twice as stretchy as steel.
To make a Ti frame in the proportions of a steel frame behave like a steel frame, you'd need to use tubing that'd allow for double the cross section area.
To make if stiff, you'd need even more material.
It'd negate a fair chunk of the weight advantage you'd get from using Ti.
Early Ti frames were often made from standard tube diameters and wall thicknesses, which resulted in very flexy frames.
Luckily they were still perceived good enough to generate enough interest for industry to start producing Ti tubing in diameter/wall thickness combos that were more suited for bicycle frames.
Still, to make a stiff Ti frame, you either need to use a prohibitive amount of material, or a fairly driven frame/tubing design.
It's entirely possible to make a stiff Ti frame, but given the stretchiness of the base material, it'd take some effort.
Simple engineering restraints (amount of material used, difficulty/number of process stages required) suggests that flexy Ti frames are more likely than stiff Ti frames.
Aluminum frames do tend to be stiff.
Don't have to be, but tend to be.
Aluminium, as opposed to steel and Ti has a definite fatigue limit.
It has to be stiff to survive.
Let it flex "too much" and it'll eat into the working life fairly quick.
It'd be no problem to engineer a smooth riding Al frame - if you were allowed to put a "retire at xx miles" sticker on it.
Might not go down that well with the customers...
As for fatigue resistance? Steel has the worst and you don't see steel breaking very often do you?
So a properly designed frame in any materials can be made stiff as necessary.
Really, what does Young's Modulus have to do with proper frame design?
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