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clear
//
//
//Initilization of Variables
D=70 //mm //External Diameter
t=8 //mm //Thickness of pipe
L=2500 //mm //span
sigma=150 //N/mm**2 //stress
//Calculations
//Internal Diameter
d=D-2*t //mm
//M.I Of Pipe
I=%pi*64**-1*(D**4-d**4) //mm**4
y_max=D*2**-1 //mm
Z=I*(y_max)**-1 //mm**3
//Moment Carrying capacity
M=sigma*Z //N*mm
//Max moment int the beam occurs at the mid-span and is equal to
//m=P*L*4**-1
//Equating Max moment to moment carrying capacity we get,
//M=P*2.5*L*4**-1
//After substituting and simplifying we get
P=4*M*(L)**-1*10**-3 //N
//Result
printf("\n Max concentrated load that can be applied at the centre of span is %0.3f KN",P)
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