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Old Jul 14, 2009 | 07:04 AM
  #16  
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Yes to everything you asked. It happened in Pennsylvania, near Harrisburg. My insurance company is on it. Plus as I mentioned I am friends with the Auto Body owner.
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Old Jul 14, 2009 | 07:08 AM
  #17  
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Maybe there was a jolt but I didn't notice it. Could be I was in a panic mode & was numb to what happened. The driver said she was doing around 45 so that's all I have to go by. Yes it was a Ford Escape - she wrote this down on the info she provided. Damage to the Escape is -front bumper twisted & pushed in, grill shattered, right side panel buckled, hood buckled. Funny part is that neither of us had the lights damaged. Looks like the impact was low on both vehicles.
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Old Jul 14, 2009 | 08:34 AM
  #18  
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Here are the results of a parking lot crash. Happened around 15mph. Just fast enough to blow both airbags. Jeep-to-mid-sized-Car. Unibody was bent on Passenger side. Car hit Jeep on diagonal with it's front corner.
Mike
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Old Jul 14, 2009 | 12:32 PM
  #19  
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Interesting. Hopefully I was just lucky that there wasn't any major damage. Either I own a tank or the Escape is made of cardboard, LOL. But we still haven't look under the bumber cover or under the vehicle so there could be damage that we do not see. I guess I'll find out next week.

She had very similar damage to what your pix shows only with a lot more damage to the bumber, a smashed grill, the left side panel was pullsed away from the tire and the hood was buckled in the center.

Last edited by headusher; Jul 14, 2009 at 12:35 PM.
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Old Jul 14, 2009 | 01:21 PM
  #20  
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Originally Posted by headusher
Interesting. Hopefully I was just lucky that there wasn't any major damage. Either I own a tank or the Escape is made of cardboard, LOL. But we still haven't look under the bumber cover or under the vehicle so there could be damage that we do not see. I guess I'll find out next week.

She had very similar damage to what your pix shows only with a lot more damage to the bumber, a smashed grill, the left side panel was pullsed away from the tire and the hood was buckled in the center.
Yea, my guess is she was going 45 but then got hard into the brakes before she hit you. My experience with Cherokees has been when you look under the Jeep at the unibody rails that you will find them crinkled from the hit. Another way to tell is to look at the gap around your tailgate. See if it's still even all the way around and when you open and close it does it now rub on the bottom of the tailgate near the bumper. That's on regular Cherokees anyways. Just crawl under there with a good light and you will find out. I have had collision shops miss things before, so it's a good idea to have a feel for the damage ahead of time. That way you can write down a list of questions also.
Mike
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Old Jul 14, 2009 | 01:53 PM
  #21  
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Originally Posted by RickBeer
If you got hit at 45 mph---- & never felt a jolt----- & only recieved bumber damage & minor damage to the lift gate something is not adding up trust me you would have felt something even at 5-10 mph
& the crush zone to the rear of a GC is set at 25mph
you must have pictures of both cars somewhere
Are we going to get an answer on this statement? "the crush zone to the rear of a GC is set at 25mph".
You posted this for all the world to see so I think you need to explain this so others are not misinformed by your statement.
Your statement is absolutely not true and I challenge you to post a single piece of data backing up what you said.
Again I ask... if the crush zone is set at 25mph is it the same as being hit at 25mph by a BB gun BB? I'm sure they shoot 25 mph! How about being hit by a freight train at 25mph? If it's "Set at 25mph" should they both cause the same damage?
Please enlighten all who have read your post so they are not misinformed.
Mike
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Old Jul 14, 2009 | 08:04 PM
  #22  
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Originally Posted by Mike1998XJ
Are we going to get an answer on this statement? "the crush zone to the rear of a GC is set at 25mph".
You posted this for all the world to see so I think you need to explain this so others are not misinformed by your statement.
Your statement is absolutely not true and I challenge you to post a single piece of data backing up what you said.
Again I ask... if the crush zone is set at 25mph is it the same as being hit at 25mph by a BB gun BB? I'm sure they shoot 25 mph! How about being hit by a freight train at 25mph? If it's "Set at 25mph" should they both cause the same damage?
Please enlighten all who have read your post so they are not misinformed.
Mike
MIKE first off take a deep breath take a drink of water & COOL off

OK now that you did that take a look of the picture of the XJ on the trailer that was doing 15 mph in a parking lot some damage but not all that bad I am sure the front bumper would show damage even at a two mph collision, imagine a speed greater than 15 say 45 it would crush even more the hood would wrinkle up the roof would start colapsing ect. when the manufactures build the safty features into cars & trucks & test them in simulated crash test they used a fixed object such as a wall or an other car/truck not a BB gun nor a freight train but relistic crash's that happen every day on the streets that you & me drive on
The next pictures that I will post is my Jeep hitting a t-bird head on at 40mph.... investigators claim that we were going at the same speed upon impact were we hit is were we stopped other than going e-w ended up n-s I did some research on my Jeep when this happen & what the crash test data said was true... so when I bought my WJ I also looked at the crash test results & roll over specs & determined if I should purchase the Jeep or not


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Old Jul 14, 2009 | 08:22 PM
  #23  
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Not sure if this will work looks like the 5mph crash test to me
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Old Jul 14, 2009 | 09:31 PM
  #24  
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the crush zone to the rear of a GC is set at 25mph

You still haven't explained your statement above. I will try and explain this in simple terms.
Force= Mass * Acceleration.

Ok, so we need to solve for the Force. Right??? The force is what is going to determine the intrusion into the Passenger compartment of the object doing the hitting.
Consider Acceleration as (Speed). You have given us a speed of 25 miles per hour.
So to solve for Force (The impact) we need to have 2 know numbers. Besides the 25mph you mention we need to know the mass (think of it as the weight) of the object doing the impact.
That is the only way to solve this simple equation to get the force of a given impact and thus it's intrusion into the passenger compartment. That is why I am using extreme examples to make you understand that your statement is misleading and incorrect.
Do you understand now? To just say "the crash zone is set at 25mph" means absolutely nothing.
Believe me I fully understand your posted pictures and statements. When I was an Engineer at Chrysler I worked on the design and testing of the dash board panels and air bag deployments. I have seen many crash tests.
Mike
By the way your 40 mile an hour impact exaple is actually an 80 mile an hour impact. 40+40 right?
And yes I saw the Jeep in the picture because it's my Jeep...

Last edited by Mike1998XJ; Jul 14, 2009 at 09:34 PM.
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Old Jul 14, 2009 | 10:25 PM
  #25  
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Originally Posted by Mike1998XJ
the crush zone to the rear of a GC is set at 25mph

You still haven't explained your statement above. I will try and explain this in simple terms.
Force= Mass * Acceleration.

Ok, so we need to solve for the Force. Right??? The force is what is going to determine the intrusion into the Passenger compartment of the object doing the hitting.
Consider Acceleration as (Speed). You have given us a speed of 25 miles per hour.
So to solve for Force (The impact) we need to have 2 know numbers. Besides the 25mph you mention we need to know the mass (think of it as the weight) of the object doing the impact.
That is the only way to solve this simple equation to get the force of a given impact and thus it's intrusion into the passenger compartment. That is why I am using extreme examples to make you understand that your statement is misleading and incorrect.
Do you understand now? To just say "the crash zone is set at 25mph" means absolutely nothing.
Believe me I fully understand your posted pictures and statements. When I was an Engineer at Chrysler I worked on the design and testing of the dash board panels and air bag deployments. I have seen many crash tests.
Mike
By the way your 40 mile an hour impact exaple is actually an 80 mile an hour impact. 40+40 right?
And yes I saw the Jeep in the picture because it's my Jeep...
Your absolutly right & I am absolutly wrong MY BAD
sorry to hijack the post everyone Puh-Lease forgive me
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Old Jul 15, 2009 | 05:14 AM
  #26  
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Let me say something about this issue.
Security standards have radically changed during the late '70ies.
There has been a radical switch from elastically rigid structure impacts to unelastic, gradual absorption collisions.
The reason of this changement is because it has been discovered that the main cause of decease in car crashes is the damaging of internal organs due to cinetic force transfer in elastical impacts and not external injury provided by the hardware.
What this means is u get killed from the sudden acceleration (or deceleration) of your body that literally disintegrates your tissues and organs besides your bone fractures.
Car chassis and frames have been redesigned with particular geometries to ease deformation and absorb the forces in place of your body.
The tendence is to increase the passive safety devices in detriment to the active ones.
There are some standards that have been imposed to car builders (USNCAP, EURONCAP) that provide car crash testing operated by NHTSA and IIHS at setted speeds and dinamics.
The statement "the crush zone is set at 25mph in a GC" is related to the ability of not crushing the safety cage under that speed (the bumper-frame will crush though), colliding with a medium size-weight vehicle.
This has very little relevance in real life, because if u get hit by a lorry u will indeed receive the same crash damage of a medium sized vehicle, but immediately after the impact, when the GC has absorbed all the absorbable, it will start to accelerate forwards rigidly because of the huge inertial mass of the lorry that keeps pushing and if there is another vehicle in front of you that stops (it won't) the advancing of the mass, the GC and occupants set will assume the dimension of the engine length, bumper to bumper.
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Old Jul 15, 2009 | 08:50 AM
  #27  
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Originally Posted by headusher
Funny part was that I saw her coming & we braced ourselves & waited & waited for the jolt. r
Couldnt you have just moved out of the way? or wasnt there a shoulder?
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Old Jul 16, 2009 | 07:18 AM
  #28  
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Couldn't go anywhere. Single lane split ramp to the left in PA. If you know PA roads they do not give you any room to maneuver. Plus had at least 5 vehicles in front of me on the same ramp & we were all within a few feet of each other. I was too busy trying not to hit the guy in front of me since eveyone came to a sudden stop.

..... "My experience with Cherokees has been when you look under the Jeep at the unibody rails that you will find them crinkled from the hit. Another way to tell is to look at the gap around your tailgate. See if it's still even all the way around and when you open and close it does it now rub on the bottom of the tailgate near the bumper. That's on regular Cherokees anyways. Just crawl under there with a good light and you will find out. I have had collision shops miss things before, so it's a good idea to have a feel for the damage ahead of time. That way you can write down a list of questions also."
Mike

Checked underneath the rear bumper & looked at all around the underside & didn't see anything strange. All metal pieces looked ok - didn't see any crinkles & all spacings are even but I'll still have the expert take a look. I go see their estimator today. I'll let you know what happens.
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Old Jul 16, 2009 | 07:51 AM
  #29  
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I'm gonna chime in on this. I was in a collision with my 2000 dodge dakota before I brought my TJ, which was before I bought my xj. I was going about 55 and glanced over at this lifted truck. When i looked back ahead of me, this Hyundai suv stopped at a stop light. I managed to slam on the brakes and get it down to 45 but that was all I could do and BAM! I rear ended her. Her car barely moved forward and dakota's grill, bumper, hood, and fog lights were all damaged. The radiator was pushed into the fan. On her suv, the rear door was pushed in just a little and the handle was fubar. That was IT. Her damage total was $600, mine was $3000.

Sometimes the damage is very minimal, sometimes it's excessive. The laws of motion apply but the results are always different.
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Old Jul 16, 2009 | 09:30 AM
  #30  
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Originally Posted by muddeprived
I'm gonna chime in on this. I was in a collision with my 2000 dodge dakota before I brought my TJ, which was before I bought my xj. I was going about 55 and glanced over at this lifted truck. When i looked back ahead of me, this Hyundai suv stopped at a stop light. I managed to slam on the brakes and get it down to 45 but that was all I could do and BAM! I rear ended her. Her car barely moved forward and dakota's grill, bumper, hood, and fog lights were all damaged. The radiator was pushed into the fan. On her suv, the rear door was pushed in just a little and the handle was fubar. That was IT. Her damage total was $600, mine was $3000.

Sometimes the damage is very minimal, sometimes it's excessive. The laws of motion apply but the results are always different.
If it was a Hyundai Galloper its basically a Mitsubishi Payero, and tese are damn tough old style built.
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