Its a bad one but good to know that everyne is safe and sound. All's well that ends well. Quote: i turned to look at the mangled wreck sitting on the road and saw my Dicor who had just saved everyone and took the massive impact on itself It kills you to just see the car turned to a wreck from all the glory.. Just could not see it go.. It is too precious.. Also.. FYI.. the Crashguard which I had put up in front and where there is a entire thread dedicated to it saying that it will bend the chassis and it is not safe.. Saved everyone. The crashguard took the masive impact and is destroyed beyond belief.. but thats one reason the passengers were safe. Believe it or not.. it works. |
It doesnt work.
I know this is not a time to go into the technics of crumple zones but I look at this as an opportunity to bring out the facts on how the crashguard was working against the crumple zones and infact could have caused more damage to the occupants had the safari been running at greater speed during this crash.
Your vehicle was moving with a Kinetic energy (E) of 160000, kinetic energy is defined as the energy associated with a moving object and is calculated at E = (1/2) mass × speed2(sq) and the same needs to get absorbed during a crash by both objects of collision. Driving a very heavy vehicle does not lessen the effect of the impact because although there is more metal to absorb the impact energy, there is also more energy to be absorbed.
Now If we look at the curved lines which I have drawn, this is how the front box should have crumpled Vs the whole impact going to the centre of the front body and then passing through like a seawave to the end of the passenger compartment. Role of crash/ Nudge guard in this crash:- it embraced the bonnet and prevented it from folding/ absorbing.
- prevented the bumper, the guard bar below to absorb the impact
- prevented the front box to absorb the impact.
- Although I must admit it has prevented considerable damage to the engine as such but engines are not part of the crumple zones anyways, due to their heavy built
Results:- The whole body/ chasis has taken the brunt of it (impact=force has to go somewhere)
- the whole passenger compartment is shaken and seats uprooted etc, just like a tsunami wave would engulf everything in its path.
- There are possible structural damages to the passenger compartment from what you describe.
- More physical and unvisible injury is/was a possibility(lower back impact, neck, arm joints etc)
You decide, what would you have choosen: - More damage to the vehicle by providing unrestricted crumple zones
- Risk of Greater Physical injury to the passengers of the vehicle
My recommendations(although i am no expert) : Crumple zones try to absorb and impact of the crash and prevent the impact from reaching the passenger compartment, therefore please dont restrict them.
This safari is a goner and god forbid, will be unable to protect its occupants going forward, let it go, buy the 2.2l.
Last edited by dadu : 14th July 2009 at 17:50.
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