diff options
Diffstat (limited to '3864/CH2/EX2.27/Ex2_27.sce')
-rw-r--r-- | 3864/CH2/EX2.27/Ex2_27.sce | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/3864/CH2/EX2.27/Ex2_27.sce b/3864/CH2/EX2.27/Ex2_27.sce new file mode 100644 index 000000000..d02f8430d --- /dev/null +++ b/3864/CH2/EX2.27/Ex2_27.sce @@ -0,0 +1,42 @@ +clear +// +// + +//Initilization of Variables + +D=20 //mm //Diameter of Bolts +Di=25 //m //internal Diameter +t=10 //mm //Thickness of bolt +E_s=2*10**5 //N/mm**2 //Modulus of Elasticity +E_c=1.2*10**5 //N/mm**2 //Modulus of copper +p=3 //mm //Pitch +theta=30 //degree +L_c=500 //Lengh of copper +L_s=600 //Length of steel + +//Calculations + +//Let P_s be the Force in each bolt and P_c be the FOrce in copper tube +//From Static Equilibrium condition +//P_c=2*P_s + +//As nut moves by 60 degree.If nut moves by 360 degree its Longitudinal movement is by 3 mm +dell=theta*360**-1*p + +//From Compatibility Equaton we get +//dell=dell_c+dell_s + + +A_s=%pi*4**-1*Di**2 //mm**2 //Area of steel +A_c=%pi*4**-1*(45**2-Di**2) //mm**2 //Area of copper + +//Force introduced in steel +P_s=0.5*(2*L_c*(A_c*E_c)**-1+L_s*(A_s*E_s)**-1)**-1 //N +P_s2=P_s*A_s**-1 + +//Force introduced in copper +P_c=2*P_s*A_c**-1 //N + +//Result +printf("\n Stress introduced in bolt is %0.2f N/mm**2",P_s2) +printf("\n stress introduced in tube is %0.2f N/mm**2",P_c) |