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Diffstat (limited to '3772/CH5/EX5.3/Ex5_3.sce')
-rw-r--r-- | 3772/CH5/EX5.3/Ex5_3.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/3772/CH5/EX5.3/Ex5_3.sce b/3772/CH5/EX5.3/Ex5_3.sce new file mode 100644 index 000000000..1e8ba01c6 --- /dev/null +++ b/3772/CH5/EX5.3/Ex5_3.sce @@ -0,0 +1,30 @@ +// Problem 5.3,Page no.123 + +clc;clear; +close; + +b=10 //cm //width of beam +d=20 //cm depth of beam + +//Calculations + +//R_a and R_b are the reactions at A and B respectively. +//Moment of all forces about A + +R_b=(4*4*4*2**-1-2*1.5)*(2)**-1 //KN +//R_a+R_b=18 +R_a=18-R_b + +//Consider a section at a distance x from A +//M_x=9.25*x-2(x-1.5)-4*x*x*2**-1=7.25*x+3-2*x**2 + +//Taking derivative of above equation to find max value of M_x we get +x=1.81 //m + +M=7.25*x+3-2*x**2 //kN*m +I=b*d**3*12**-1 //cm**4 //M.I of the section +y=10 +sigma=M*I**-1*y*10**8*(10**2)**-1 //Max bending stress + +//Result +printf("The Max Bending stress is %.2f kN/m^2",sigma) |