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Diffstat (limited to '3863/CH1/EX1.4/Ex1_4.sce')
-rw-r--r-- | 3863/CH1/EX1.4/Ex1_4.sce | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/3863/CH1/EX1.4/Ex1_4.sce b/3863/CH1/EX1.4/Ex1_4.sce new file mode 100644 index 000000000..e6106d966 --- /dev/null +++ b/3863/CH1/EX1.4/Ex1_4.sce @@ -0,0 +1,41 @@ +clear +// + +//Given +//Variable Declaration +D=3 //Diameter of the steel bar in cm +L=20 //Gauge length of the bar in cm +P=250 //Load at elastic limit in kN +dL=0.21 //Extension at a load of 150kN in mm +Tot_ext=60 //Total extension in mm +Df=2.25 //Diameter of the rod at the failure in cm + +//Calculation +A=((%pi/4)*(D**2)) //Area of the rod in sq.m + + +//case (i):Youngs modulus +e=((150*1000)/(7.0685)) //stress in N/sq.m + +sigma=dL/(L*10) //strain +E=((e/sigma)*(10**-5)) //Youngs modulus in GN/sq.m + + +//case (ii):stress at elastic limit +stress=int(((P*1000)/A))*1e-2 //stress at elastic limit in MN/sq.m + + +//case (iii):percentage elongation +Pe=(Tot_ext*1e2)/(L*10) + +//case (iv):percentage decrease in area +Pd=(D**2-Df**2)/D**2*1e2 + + +//Result +printf("\n NOTE:The Youngs Modulus found in the book is incorrect.The correct answer is,") +printf("\n Youngs modulus,E = %0.3f GN/m^2",E) +printf("\n Stress at the elastic limit,Stress = %0.3f MN/m^2",stress) +printf("\n Percentage elongation = %d%%",Pe) + +printf("\n Percentage decrease in area = %.2f%%",Pd) |