Freaky Accident With Audi A8 Cut In Half - Page 3

Merc1 · 09-08-2007, 02:58 PM

Quote:

Originally Posted by Yannis

That's a previous generation A8. I would like to see what a 10 year old S class or 7 series could do in an accident like this.
Probably nothing better.

Aluminium is much stronger than steel. No wonder Lamborghini , Ferrari and many other top car makers are using it for their sportscars.

D3 A8 was the most rigid car in it's class when presented a few years ago ,leaving 7 series and S class far behind. I don't know if the new S class have managed to match it though.

I was just waiting for you to say something like this Yannis. Once again no one can dare question Audi.

A 10 year S-Class would have been the W140 model, a tank on wheels if there ever was one. Who knows what it would have done, but I'd bet on that particular S before I would an Audi.

BMW, well they still haven't fully maxed out on safety yet, so the previous 7 I wouldn't bet on against the Audi.

M

Poverty · 09-09-2007, 09:02 AM

Quote:

Originally Posted by Maserati

Guys do you remember the thread about torisional rigidity ? I think this proves my point somehow. I don't know if Audi is aware of this or not, but I think over using aluminium in the chasis structure will lead to situations like this. There was a lady here in UAE with a D3 A8 that got the same situation, she walked away unharmed but the car was cut into 3 pieces. Problem is that in both cases (the one in this thread and the lady) no one was sitting at the back, otherwise the situation would be more fatal. Btw the lady sued the company as i remember.

The RS6 that crashed tore in two aswell and the driver escaped without a scratch, but in each case there seems to be a tree involved! Usually a high speed impact with a tree means automatic death.

Maserati · 09-09-2007, 09:38 AM

Poverty: yes you are right dear. tree + high speed =

Car Diva · 09-09-2007, 06:10 PM

Yes, the material did have much to do with the results;
the coefficient of elasticity of Aluminum is much smaller than that of Steel
( I had to look it up but I remember being a 3 to 1 ratio , please see below link to hyperphysics)

What this means is that the steel can absorb more of the energy from the crash by deforming
rather than cutting ( you know, that elastic vs inelastic collision thing and deformation of structural molecular lattices)

On the other hand, it was high speed against a tree; large healthy trees tend to act as extremely rigid objects.. definitely NOT good for cars!
Just check out the modulus for wood!

I am glad the person driving survived!

Ok, now back to being blonde..

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Maserati · 09-09-2007, 08:25 PM

Now yannis will go mad and accuse us being stupid

ok everyone would assume that Audi for sure have thought of this, but why they still insist on using Aluminium ?

Car Diva · 09-09-2007, 10:34 PM

Hey Maserati man, don't worry I'll tell yannis not to call us stupid

Yannis: please don't call us STUPID ( or anything else of the sort)

Well, you're not supposed to slam cars at high speed into trees

( or anything else in that case).

But Aluminum does have a low density (lighter weight per same volume) than steel. So it does have its good side.

Keep in mind that for that car, that accident , if steel would have been used, that car would probably be a ugly tangled mess !

Funny, you say Aluminium, I say Aluminum

vroom_vroom · 09-15-2007, 06:25 AM

Theres been another accident like that with the audi rs6 as some one said above...its freaky...Oh well shame about the car....but its good the man didnt get hurt

coolraoul · 09-15-2007, 06:43 AM

Why shame about the car? because it cut in two?

Anyone know if other cars than Audi also get cut in two in similar accidents?
If no, will never buy an Audi, and will never seat on the rear seats of an Audi!

If yes, will never drive like a maniac... Well, I don't care actually, if I drive I am not at the rear, so I can drive like a maniac..

coolraoul · 09-15-2007, 06:53 AM

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Freakin' crazy...

Maserati · 09-15-2007, 06:53 AM

Quote:

Originally Posted by Car Diva

Hey Maserati man, don't worry I'll tell yannis not to call us stupid

Yannis: please don't call us STUPID ( or anything else of the sort)

Well, you're not supposed to slam cars at high speed into trees

( or anything else in that case).

But Aluminum does have a low density (lighter weight per same volume) than steel. So it does have its good side.

Keep in mind that for that car, that accident , if steel would have been used, that car would probably be a ugly tangled mess !

Funny, you say Aluminium, I say Aluminum

lol @ Aluminium

... I dunno but that spelling was always stuck in my mind .. thanks for correcting that ..

BTW I think Audi have thought of that and I think they deliberatly engineered the breaking points so that the driver can walk away unharmed ... Maybe this is the case .. BUT, in many photos of such cases, the rear passengers would've been badly hurt!

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