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+//cal size of weld at 1 and 2
+clc
+//solution
+//given
+//ref fig 10.27
+P=15*10^3//N
+Tmax=120//N/mm^2
+d=80//mm
+//let s be size of weld
+T=P*240//N-mm//torque
+//t=(2.83*T)/(pi*s*80^2)=506.6/s
+M=P*175//N-mm
+//fb=(5.66*M)/(pi*s*80^2)=(738.8/s)//N/mm^2
+//Tmax=0.5*(sqrt(fb^2+t^2))
+//Tmax=627/s
+s=627/Tmax//mm
+printf("the sieze of weld is,%f mm",s)
+\ No newline at end of file