Deflection Calculation Help
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Posted by: MATHHELPMSU ®

12/01/2005, 12:51:47

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hello could someone help me with this problem

I have to fixed ends with 700 lbs on one end with 14 psi pushing on it. My length is 25 inches, I used the vmax equation

vmax = (P * L^4)/(384 * E * I)

P = 14 psi
L = 25^4
E = 29 * 10^6
I = (could someone help me solve for I or do you know the equation)

Thank you







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Re: Deflection Calculation Help
Re: Deflection Calculation Help -- MATHHELPMSU Post Reply Top of thread Forum
Posted by: sushidhar ®

12/06/2005, 08:01:56

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actually the formla for max deflection
i.e deflection at center generally is equal to,
delta= 5*p*(l^4)/384*e*i
where p- force per unit length
i- polar moment of inertia = (B*H^3)/12 for a rectangular crossection with b- width, h -height of rod







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Re: Deflection Calculation Help
Re: Deflection Calculation Help -- MATHHELPMSU Post Reply Top of thread Forum
Posted by: Georgezx9 ®

12/05/2005, 08:07:20

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Boobed in the response

it should read I = PL^4 / 384EV







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Re: Deflection Calculation Help
Re: Deflection Calculation Help -- MATHHELPMSU Post Reply Top of thread Forum
Posted by: Georgezx9 ®

12/05/2005, 07:55:41

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transposing is easy I = PL^4 / 384ei

HOWEVER i WOULD BE SURPRISED IF P WAS A PRESSURE, I WOULD HAVE THOUGHT IT WAS A LOAD.







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