diff options
Diffstat (limited to '3863/CH24')
-rw-r--r-- | 3863/CH24/EX24.10/Ex24_10.sce | 26 | ||||
-rw-r--r-- | 3863/CH24/EX24.12/Ex24_12.sce | 27 |
2 files changed, 53 insertions, 0 deletions
diff --git a/3863/CH24/EX24.10/Ex24_10.sce b/3863/CH24/EX24.10/Ex24_10.sce new file mode 100644 index 000000000..494d7c28e --- /dev/null +++ b/3863/CH24/EX24.10/Ex24_10.sce @@ -0,0 +1,26 @@ +clear +// +// + +//Given +//Variable declaration +P=9*1000 //Axial pull in N +F=4.5*1000 //Shear force in N +sigmat_star=225 //Elastic limit in tension in N/sq.mm +Sf=3 //Factor of safety +mu=0.3 //Poisson's ratio +sigma3=0 //third principle stress + +//Calculation +sigmat=sigmat_star/Sf +sigma=(P/(%pi/4)) +tau=(F/(%pi/4)) +sigma1=((tau)+int((sqrt((sigma/2)**2+tau**2)))) + +sigma2=((tau)-int((sqrt((sigma/2)**2+tau**2)))) + +d=(((((sigma1-sigma2)**2+(sigma2-sigma3)**2+(sigma3-sigma1)**2)/(2*(sigmat**2)))**(1/4))) + + +//Result +printf("\n Diameter of the bolt = %0.3f mm",d) diff --git a/3863/CH24/EX24.12/Ex24_12.sce b/3863/CH24/EX24.12/Ex24_12.sce new file mode 100644 index 000000000..933c2f32f --- /dev/null +++ b/3863/CH24/EX24.12/Ex24_12.sce @@ -0,0 +1,27 @@ +clear +// +// +//Given +//Variable declaration +d=1.2 //Diameter in m +p=1.5 //Internal pressure in MN/sq.m +sigmat_star=200 //Yield stress in MN/sq.m +Sf=3 //Factor of safety + +//Calculation +sigmat=sigmat_star/Sf //Permissible stress in simple tension in MN/sq.m + +//case(i):Thickness on the basis of Maximum principal stress theory +t1=((p*d)/2)/sigmat*1e3 + +//case(ii):Thickness on the basis of Maximum shear stress theory +t2=((p*d)/2)/sigmat*1e3 + +//case(iii):Thickness on the basis of Maximum shear strain energy theory +t3=(sqrt((((p*d/2)**2)+((p*d/4)**2)-((p*d/2)*(p*d/4)))/(sigmat**2))) + + +//Result +printf("\n Thickness of plate on the basis of maximum principal stress theory = %0.3f mm ",t1) +printf("\n Thickness of plate on the basis of maximum shear stress theory = %0.3f mm ",t2) +printf("\n Thickness of plate on the basis of maximum shear strain energy theory = %0.3f mm ",t3) |