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13 Nov 2008, 19:51 (Ref:2334489)
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#1 | ||
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Rookie
Join Date: May 2008
Posts: 20
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Anti-roll bar dimensions
Hello, I am currently conducting a design project for an ARB and I have a problem, I know how to dimension if for the right rigidity in Nm/rad but I'm not sure how to verify if it will hold as stress. I've tried to calculate the mass transfered via the ARB as the force that is entered in the arms but this gives me an enormous bar when I compare it to the bars I see on other cars. It would also be really nice to hear something on the material of the bar but i'm thinking of AISI/SAE 4130.
Thank you for your cooperation Mauricio Toro R. ENIM Racing Team France |
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16 Nov 2008, 14:44 (Ref:2335823)
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#2 | |
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Veteran
Join Date: Jul 2005
Posts: 1,981
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According to my references, 4130 has an ultimate tensile strength of about 670 newtons per millimetre squared.
Heat treated this can be increased to about 1170 newtons per millimetre squared. I think when you do the maths again you will find find 4130 adequate for the job - it is commonly used to make anti roll bars. |
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25 Nov 2008, 15:06 (Ref:2341455)
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#3 | |
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Veteran
Join Date: Jul 2005
Posts: 1,981
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Glad I bothered.....
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30 Nov 2008, 13:14 (Ref:2344216)
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#4 | ||
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Rookie
Join Date: May 2008
Posts: 20
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Sorry I couldn't answer earlier but the design of the car gotten hectic especially since we are trying to build in parallel. Your information was very useful and the roll bar was finally sent of to manufacture, thank you very much and sorry for not responding.
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30 Nov 2008, 14:10 (Ref:2344234)
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#5 | |
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Veteran
Join Date: Jul 2005
Posts: 1,981
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No problem - thanks for responding and bonne chance
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