Roll Cage Crash Test - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 11 Old 11-22-2013, 10:06 AM Thread Starter
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Roll Cage Crash Test

I saw this pop up on Facebook so I apologize if it is a re-post.

However, this is pretty interesting as a lot of people assume their custom role cage is safe.

LiveLeak.com - Crash testing a Sprint car

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post #2 of 11 Old 11-22-2013, 12:25 PM
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The second I saw the "cage" of the car I had a big complaint, but I saved judgment untill I watched the whole video.

In the "roof crash", you see the whole top of the cage crumble. This is 100% due to the fact the cage has tubes built in shear; triangulation meeting in the middle of a tube with no complimentary "flow" out of that intersection, or node, to somewhere else on the cage. The video proves the cage will crush in this area, and IMO, proves it was a poorly designed cage for roof impact; something that I noticed in the first images of the cage/chassis.

My point: that "A pillar" if you want to call it that, by the driver, is poorly supported and poorly designed and essentially has a built in crumple section that would personally raise a big red flag were that a "custom cage" on an offroad rig...

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post #3 of 11 Old 11-22-2013, 02:18 PM
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Here's a proper cage. http://www.carbuzz.com/news/2013/11/...retty-7717242/

Hasport Hondata Insight car #2010 Crashes at El Mirage Nov '13 - YouTube

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post #4 of 11 Old 11-22-2013, 04:26 PM
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Originally Posted by JKred07 View Post
The second I saw the "cage" of the car I had a big complaint, but I saved judgment untill I watched the whole video.

In the "roof crash", you see the whole top of the cage crumble. This is 100% due to the fact the cage has tubes built in shear; triangulation meeting in the middle of a tube with no complimentary "flow" out of that intersection, or node, to somewhere else on the cage. The video proves the cage will crush in this area, and IMO, proves it was a poorly designed cage for roof impact; something that I noticed in the first images of the cage/chassis.

My point: that "A pillar" if you want to call it that, by the driver, is poorly supported and poorly designed and essentially has a built in crumple section that would personally raise a big red flag were that a "custom cage" on an offroad rig...
X2. A lot in dead and unsupported tube. No surprise it did that. I don't assume my custom cage will be perfect in a highway roll, but it is a lot better then stock and it's done its job both times I have used it.
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post #5 of 11 Old 11-22-2013, 07:10 PM Thread Starter
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Originally Posted by spedly View Post
X2. A lot in dead and unsupported tube. No surprise it did that. I don't assume my custom cage will be perfect in a highway roll, but it is a lot better then stock and it's done its job both times I have used it.
I just found the video interesting because a lot of the cages I see in JKs have lots of space between supports and I often wonder how that impacts crumble zones.

It would be a bit ironic if your roll cage prevented you from death on the trail but actually caused it while driving home.

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post #6 of 11 Old 11-23-2013, 08:00 PM
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I am pretty sure I am fine.....or really really dead
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post #7 of 11 Old 11-24-2013, 06:20 AM
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Would have worked better if it was made of aluminum.




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post #8 of 11 Old 11-24-2013, 06:45 AM
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Would have worked better if it was made of aluminum.



No carbon fiber anymore?

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post #9 of 11 Old 11-24-2013, 04:35 PM
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Crappy cage design, crappy results. Crappy informative video, crappy company. What is their point?

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post #10 of 11 Old 11-24-2013, 04:37 PM Thread Starter
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Crappy cage design, crappy results. Crappy informative video, crappy company. What is there point?
That a lot of the cages out there are crappy.

Next time I'll make sure and point that out for you.

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post #11 of 11 Old 11-24-2013, 04:40 PM
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no shot at you.
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