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Diffstat (limited to '3772/CH14/EX14.6')
-rw-r--r-- | 3772/CH14/EX14.6/Ex14_6.sce | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/3772/CH14/EX14.6/Ex14_6.sce b/3772/CH14/EX14.6/Ex14_6.sce new file mode 100644 index 000000000..254272dc2 --- /dev/null +++ b/3772/CH14/EX14.6/Ex14_6.sce @@ -0,0 +1,55 @@ +// Problem no 14.6,Page No.332 + +clc;clear; +close; +H= 4 //m //height of dam +a=1 //m //Top width +b=3 //m //bottom width +rho1=9810 //N/m**3 //weight of water +rho2=19620 //n/m**3 //Weight of mason + +//Calculations + +//Let L=1 m (length of dam) +L=1 + +//weight of dam +W=(a+b)*2**-1*L*H*rho2*10**-3 + +////Lateral thrust +P=rho1*H**2*L*2**-1*10**-3 + +//Distance of Line of action from vertical base +x_bar=(b**2+b*a+a**2)*(3*(b+a))**-1 + +//distance of pt where resultant cuts the base +x=P*W**-1*H*3**-1 + +//Eccentricity +e=x_bar+x-b*2**-1 + +//Stress at Pt B +sigma1=W*10**3*b**-1*(1-6*e*b**-1) + +//stress at Pt C +sigma2=W*10**3*b**-1*(1+6*e*b**-1) + +//Stresses at the base when resorvoir is empty + +e2=x_bar-b*2**-1 + +//Minus sign indicates sigma_b>sigma_c + +//Stress at C +sigma2_2=W*10**3*b**-1*(1+6*e2*b**-1) + +//Stress at Pt B +sigma1_2=W*10**3*b**-1*(1-6*e2*b**-1) + +//result +printf("When the Reservoir is full :sigma1 %.2f",sigma1);printf(" N/m**2") +printf("\n :sigma2 %.2f",sigma2);printf(" N/m**2") +printf("\n When the Reservoir is empty:sigma1_2 %.2f",sigma1_2);printf(" N/m**2") +printf("\n :sigma2_2 %.2f",sigma2_2);printf(" N/m**2") + +//Answer is wrong in the textbook.////// |