The Glade 4.0
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Have car engineers been sitting around for 50 years?
https://gladerebooted.net/viewtopic.php?f=8&t=5612		 Page 1 of 1
Author:  Lex Luthor [ Wed Mar 02, 2011 4:35 pm ]
Post subject:  Have car engineers been sitting around for 50 years?
I think this video shows they haven't.

Crash Test: 1959 Bel Air vs. 2009 Malibu
Author:  Rorinthas [ Wed Mar 02, 2011 4:56 pm ]
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I had academically answered your question before watching the video, but there nothing like see that.
Author:  Aizle [ Wed Mar 02, 2011 5:05 pm ]
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That was impressive.
Author:  Lenas [ Wed Mar 02, 2011 5:11 pm ]
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The Malibu is obviously built with stronger materials and rigidity, but what happens when you run two well-built machines into each other head on? Would they both walk away with bruised knees, or would they smash into each other that much harder?

I would like to see how well the Malibu fairs against itself.
Author:  Lex Luthor [ Wed Mar 02, 2011 5:12 pm ]
Post subject:  Re:
Lenas wrote:
The Malibu is obviously built with stronger materials and rigidity, but what happens when you run two well-built machines into each other head on? Would they both walk away with bruised knees, or would they smash into each other that much harder?


The force into the Malibu is only dependent on the velocity and mass of the other vehicle. The material of the opposing vehicle doesn't matter.

So to answer your question they would both walk away with bruised knees or similar injuries.

edit:

On second thought I'm wrong. For example if the opposing vehicle has a giant spear mounted into its frame then obviously the damage would be different. So the structure matters. If someone drops a rock onto your head then it does more damage then a water balloon 3 times its size. I still think the injuries would be similar though. Both vehicles crumpled.
Author:  shuyung [ Wed Mar 02, 2011 5:17 pm ]
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But the fuzzy dice stayed on the rearview.
Author:  TheRiov [ Wed Mar 02, 2011 5:27 pm ]
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You don't necessarily want rigidity in the building materials. You want the physical integrity of the passenger area to remain intact so it should be rigid. You want the rest of the car to absorb the impact--it does so by collapsing--putting the energy of the impact into deforming those areas, rather than transfering it to the rest of the car.
Thats why 'crumple zones' are created.

You dont want the engine flying into the drivers seat obviously, but in a collision you dont really care what happens to the rest of the vehicle, so long as the passenger area remains intact.

Think of it this way: if you put an egg in a tin foil toy car and roll it against the wall. The tin foil will crumple and absorb most of the impact and the egg may come out intact. Repeat the experiment with a solid block of steel. The egg will almost certainly shatter.
Author:  Vindicarre [ Wed Mar 02, 2011 6:13 pm ]
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Heheh, in 50 years they came up with crumple zones (I kid, I kid)! I used that in a sophomore physics project.
The ghost of Preston Tucker just passed through The Glade.
Author:  Lex Luthor [ Wed Mar 02, 2011 6:17 pm ]
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Crumple zones are clearly very difficult to optimize correctly in cars. The basic principle is easy to understand.
Author:  Vindicarre [ Wed Mar 02, 2011 6:18 pm ]
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Clearly
Author:  Noggel [ Wed Mar 02, 2011 6:55 pm ]
Post subject:  Re:
Vindicarre wrote:
The ghost of Preston Tucker just passed through The Glade.


This is what came to mind too. :p

While I am all about supporting material and structure both in the outcome of a collision, I still am a bit curious how other older cars would fare. Not knowing what a Bel Air was, when the video first started I was afraid they'd pick something less than standard, with the results thus being less than useful. When I saw the cars, I was relieved a bit, but... still could use more!

...maybe just because it's awesome to watch stuff like that from high-speed cameras, though.
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