Accord Euro Crash test vids i found

I was browsing youtube and came across these

Heres some footage to make us euro drivers see we have a safe car

crashtest1

crashtest2

crashtest3

=D watching them makes me see that i have a nice and sturdy car =P

Interesting!

I wonder how fast those crash test was at.

Why did the curtain airbags deploy in that first one...that was front on?

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Originally Posted by Jaso

Why did the curtain airbags deploy in that first one...that was front on?

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If you noticed the video title it says, "with SAB" meaning, with side airbags, be it curtain or actual side air bags.

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Originally Posted by Jaso

Why did the curtain airbags deploy in that first one...that was front on?

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Because the amount of Gs in a frontal crash into a wall (immovable object) is high enough to even set off the curtain airbag sensor. Crashing into a wall at 60km/h is worse than T-boning another car at 80km/h (guessing numbers). If you look at TV reports of fatal head on collisions on the freeway at 80km/h, the passengers die but the car has less damage than the Euro in this vid.

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Originally Posted by aaronng

Because the amount of Gs in a frontal crash into a wall (immovable object) is high enough to even set off the curtain airbag sensor. Crashing into a wall at 60km/h is worse than T-boning another car at 80km/h (guessing numbers). If you look at TV reports of fatal head on collisions on the freeway at 80km/h, the passengers die but the car has less damage than the Euro in this vid.

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head on collisions with both cars travelling at 80km/h will be the same as running into a wall at 160km/h, maybe worse depending the the angle and position of impact.

I think the crash tests are mostly done at 60mph

Considering those videos above except the first one are NCAP crash tests, here is from their FAQ.

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How does NHTSA perform the frontal crash rating and how are vehicles rated?

For frontal crash ratings, crash-rating dummies representing an average-sized adult are placed in driver and front passenger seats and secured with the vehicle's seat belts. Vehicles are crashed into a fixed barrier at 35 miles per hour (mph), which is equivalent to a head-on collision between two similar vehicles each moving at 35 mph.

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Originally Posted by viper8548

head on collisions with both cars travelling at 80km/h will be the same as running into a wall at 160km/h, maybe worse depending the the angle and position of impact.

I think the crash tests are mostly done at 60mph

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No, it is not the same as running into a wall at 160km/h. Because the 2 cars will crush and absorb the impact force. When crashing into a wall, all of the impact force goes into that one car. Elastic and inelastic collisions :)

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Originally Posted by aaronng

No, it is not the same as running into a wall at 160km/h. Because the 2 cars will crush and absorb the impact force. When crashing into a wall, all of the impact force goes into that one car. Elastic and inelastic collisions :)

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Well the equivalent is definitely more than 80km/h to a wall :P

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Originally Posted by viper8548

Well the equivalent is definitely more than 80km/h to a wall :P

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What do you mean? 80km/h to the wall will kill people already from the internal injuries sustained from the deceleration forces.

You have to calculate it in order to determine which has more damage to the car. In both cases, momentum is conserved, but for inelastic collisions kinetic energy is lost as the car crumples. In a 2 car head on collision, the lost energy is absorbed by both cars crumpling. In a car-to-wall collision, the energy is absorbed by the car alone since the wall is immovable. So my guess is that a 80km/h wall test is equivalent to 2 cars head on at 80km/h (total 160km/h) assuming that both cars crumple the same and absorbed the same energy.

HI,

European NCAP Crash Tests are usually with 64km/h

These are the front (off set) crashs into a wall/barrier.

Only my 2 cents...

damn wow i made a mass debate with this one now =P ehehe lol

What is the NCAP rating of the Euro (Limited/Luxury) with the curtain airbags?

4 star for the base without curtain airbags. Not sure what is the NCAP for the Lux. http://www.mynrma.com.au/cps/rde/xch...768EC-2D3463B7

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Originally Posted by aaronng

What do you mean? 80km/h to the wall will kill people already from the internal injuries sustained from the deceleration forces.

You have to calculate it in order to determine which has more damage to the car. In both cases, momentum is conserved, but for inelastic collisions kinetic energy is lost as the car crumples. In a 2 car head on collision, the lost energy is absorbed by both cars crumpling. In a car-to-wall collision, the energy is absorbed by the car alone since the wall is immovable. So my guess is that a 80km/h wall test is equivalent to 2 cars head on at 80km/h (total 160km/h) assuming that both cars crumple the same and absorbed the same energy.

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Although the physics of crashing two cars into each other vs one car crashing onto a wall is different, the momentum (kinetic energy) is conserved with the human subject travelling in the car. A lot of injury can result from sudden deceleration, like breaking an artery off the heart leading to massive internal bleeding. The effect of a crash on human passenger and the car is quite different and may not always be proportionate the the damage to the car and the 'total' crumple zone(s).

Not sure if the Euro is any different than the TSX when it comes to head restraints (I suspect not) but considering it's high rating in frontal crash testing the one area it comes up short is in "seat/head restraint, rear-end crash protection."

To be fair, a number of cars come up short here unless they offer active head restraints which will soon be mandatory in the U.S.

Rear crash protection: Acura

Quote:

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Originally Posted by aaronng

No, it is not the same as running into a wall at 160km/h. Because the 2 cars will crush and absorb the impact force. When crashing into a wall, all of the impact force goes into that one car. Elastic and inelastic collisions :)

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Additionally...
Kinetic energy is a scalar quantity (has magnitude but no direction). So if we're talking about a direct, head-on smash, you just add the kinetic energy of both vehicles and you get the total kinetic energy for the impact- This is working under the assumption that the momentum is effectively canceled out (momentum is a vector and has magnitude AND direction).

http://upload.wikimedia.org/math/2/3...02ee84cb22.png
You can see pretty clearly that there is significantly more kinetic energy in a 1000kg vehicle moving at 160km/h than two 1000kg vehicles traveling at 80km/h. Hence, more meat balls at a 160km/h crash into an immovable object (immovable meaning doesn't absorb the kinetic energy) :)

In simple terms, there is double the amount of kinetic energy in the higher speed impact.

To complicate things a little further, if the car travelling at 160km/h happens to smash into stationary car, the stationary car will absorb half of the total kinetic energy, and you end up with the same kinetic energy as two cars of equal mass, travelling at 80km/h having a perfectly head on collision.

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Originally Posted by ginganggooly

Additionally...
Kinetic energy is a scalar quantity (has magnitude but no direction). So if we're talking about a direct, head-on smash, you just add the kinetic energy of both vehicles and you get the total kinetic energy for the impact- This is working under the assumption that the momentum is effectively canceled out (momentum is a vector and has magnitude AND direction).

http://upload.wikimedia.org/math/2/3...02ee84cb22.png
You can see pretty clearly that there is significantly more kinetic energy in a 1000kg vehicle moving at 160km/h than two 1000kg vehicles traveling at 80km/h. Hence, more meat balls at a 160km/h crash into an immovable object (immovable meaning doesn't absorb the kinetic energy) :)

In simple terms, there is double the amount of kinetic energy in the higher speed impact.

To complicate things a little further, if the car travelling at 160km/h happens to smash into stationary car, the stationary car will absorb half of the total kinetic energy, and you end up with the same kinetic energy as two cars of equal mass, travelling at 80km/h having a perfectly head on collision.

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So to put it simply:
Driving smoothly = Good
striking an immovable or opposing object - Very Bad :p

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Originally Posted by hip

So to put it simply:
Driving smoothly = Good
striking an immovable or opposing object - Very Bad :p

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:thumbsup:

http://www.euroncap.com/tests/honda_..._2003/169.aspx

Euro NCAP...

These days its not external injuries (smacking your head into the windscreen/getting crushed by the a-pillar) that kill you in an accident, its the internal injuries. the car slows down/stops so quickly that the inertia slams all your internal organs into your rib cage blah blah blah. basically you die from complications/internal bleeding/vital organ shut down. thats why cars try use things like load limiting seatbelts that release slowly at high G's, impact crush zones, and honda's very own Gcon (g force control).