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Simulation on scale model help
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Posted by: bracco

05/17/2006, 06:24:06

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I want to perform a resistance simulation on a scale model of a small wood bridge; the model is 1/10 scale; someone knows how much I have to scale the uniform load to obtain a correct simulation (not considering the self load)?

Thanks in advance








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Re: Simulation on scale model help
Re: Simulation on scale model help -- bracco Post Reply Top of thread Forum
Posted by: zekeman

05/18/2006, 08:53:19

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If you could give us a drawing of the bridge it would be helpful.

However, I would think that you should write a bunch of equations to get the same stresses as the full scale bridge. This should involve tensile, compressive and shear stresses in the truss sections ,F/crossection area, and bending moment streses of the form
wl^2*c/I
w=uniform load and
Fl*c/I for point loads

Deflections would be of the form
wl^4/EI and
Fl^3/EI
DISCAIMER:
I am no expert on this. Just my gut feel.








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Re: Re: Simulation on scale model help Smile
Re: Re: Simulation on scale model help -- zekeman Post Reply Top of thread Forum
Posted by: bracco

05/18/2006, 11:06:10

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Thank you Zekeman
I had this suspect; anyway I will post a drawing of this bridge a soon as I complete the final sketch, but statically it is comparable to a simple beam with two support.







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