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clear
//
//variable declaration
Y=(250) //Yield stress, N/mm^2
FOS=(1.75) //Factor of safety
P=(160) //Load,KN
p=Y/FOS
printf("\n Therefore, permissible stress")
printf("\n p= %0.3f N/mm^2 ",p)
printf("\n Load P= %0.3f N",P*1000)
//p=P/A
A=P*1000/p //area,mm^2
printf("\n A= %0.0f mm^2",A)
//For hollow section of outer diameter ‘D’ and inner diameter ‘d’ A=%pi*(D^2-d^2)/4
D=(101.6) //outer diameter,mm
d=sqrt((D**2)-(4*A/%pi))
printf("\n d= %0.2f mm",d)
t=(D-d)/2
printf("\n t= %0.2f mm",t)
printf("\n Hence, use of light section is recommended.")
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