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clear
//variable declaration
Ea=70*1000 //Young's modulus of aluminium,N/mm^2
Es=200*1000 //Young's modulus of steel,N/mm^2
alphaa=(0.000011) //expansion coefficient,/°C
alphas=(0.000012) //expansion coefficient,/°C
Aa=600 //Area of aluminium portion,mm^2
As=400 //Area of steel, mm^2
La=(1.5) //length of aluminium portion,m
Ls=(3.0) //length of steel portion,m
t=18 //temperature,°C
delta=(alphaa*t*La*1000)+(alphas*t*Ls*1000) //mm
P=(delta)/(((La*1000)/(Aa*Ea))+((Ls*1000)/(As*Es)))
printf("\n P= %0.1f N",P)
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