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clear
//
//
//Given
//Variable declaration
L=4*(10**3) //Length of the bar in mm
b=30 //Breadth of the bar in mm
t=20 //Thickness of the bar in mm
P=30*(10**3) //Axial pull in N
E=2e5 //Youngs modulus in N/sq.mm
mu=0.3 //Poisson's ratio
//Calculation
A=b*t //Area of cross-section in sq.mm
long_strain=P/(A*E) //Longitudinal strain
delL=long_strain*L //Change in length in mm
lat_strain=mu*long_strain //Lateral strain
delb=b*lat_strain //Change in breadth in mm
delt=t*lat_strain //Change in thickness in mm
//Result
printf("\n change in length = %0.3f mm",delL)
printf("\n change in breadth = %0.3f mm",delb)
printf("\n change in thickness = %0.3f mm",delt)
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