Author Topic: Roll Cage material ?  (Read 21712 times)

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Offline Dreamweaver

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Re: Roll Cage material ?
« Reply #45 on: August 11, 2011, 02:32:37 PM »
author=old chevy truck link=topic=10147.msg166662#msg166662 date=1312950480]
The original question from richie asked if square tubing could be used to construct a roll cage.

In fact section 3.B.1, in the first sentence requires the use of ".... 1 5/8" O.D. round steel tubing..." for all roll cages class down to the F class. Starting with  the G class and below the requirement is "...round steel tubing not less than 1-1/2 in. O.D..."


Bub rules state , 1 1/4" x .090 does not specify round or sqaure... highlights no aluminumn hardware as part of the belt system,but does state this Builders of any frame other than those constructed of steel shall submit frame structure information to the promoters that document the durability of the structure. When requested, provide test certifications on components and stress examination as required.?


Section 3.B.1 is addressing a car not a motorcycle. My old rulebook(2009) so it may have changed does mention in 7.H.4 "flat roll cage".

Best to shoot some pictures by the appropriate SCTA or sanctioning body of choice not the interwebby place.


Offline Captthundarr

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Re: Roll Cage material ?
« Reply #46 on: August 11, 2011, 06:52:25 PM »
Richie, Stop smoken crack. This thread is going to long. GET A RULE BOOK AND LEARN TO READ. Cripes man light weight vehicles are for drag racing. this is not drag racing. you need structural integrity and the aluminum frame that you have posted aint got no back bone man . ie Steel, cheese and rice man.WTFM
Live,Laugh, Love /  Jack Scratch Racing /ECTA   
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C/GALT 137.65 Ohio Mile check that 144.12 2013, AA/GALT 159.34 Ohio Mile 2014. B/GALT 180.577 RECORD 6/15

Offline Richie

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Re: Roll Cage material ?
« Reply #47 on: August 11, 2011, 08:40:04 PM »
 author=johnneilson link=topic=10147.msg166786#msg166786 date=1313077388]
here you go, same model with centered force@ #1000

these plots show the displacement of the center point.




Thanks for taking time to run them test   :cheers:

Offline interested bystander

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Re: Roll Cage material ?
« Reply #48 on: August 11, 2011, 11:43:10 PM »
Cap Thunder,

Internet rage?

Get it ALL the time!
5 mph in pit area (clothed)

Offline johnneilson

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Re: Roll Cage material ?
« Reply #49 on: August 12, 2011, 01:41:43 AM »
While I can honestly say that I sometimes don't agree with certain rules, I usually go looking for examples of fully tested units/models. The problem with simulation is that you only get the results from the criteria that you enter into the test. The attached sample picture is from a car that left a race track and landed in a clump of trees.

As Carroll Smith wrote; All Failures are Human in Origin.

Offline Captthundarr

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Re: Roll Cage material ?
« Reply #50 on: August 12, 2011, 08:14:50 AM »
Bystander , Richie, yep internet rage, fabricator rage(mine) no time no money rage, you name it. apologies.
Live,Laugh, Love /  Jack Scratch Racing /ECTA   
Amy Hartman-Driver, Frank Hartman-everthing else.
C/GALT 137.65 Ohio Mile check that 144.12 2013, AA/GALT 159.34 Ohio Mile 2014. B/GALT 180.577 RECORD 6/15

Offline Richie

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Re: Roll Cage material ?
« Reply #51 on: August 14, 2011, 12:37:52 AM »
i'm misunderstood most of the time ... :cheers: