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Diffstat (limited to '3864/CH9/EX9.2')
-rw-r--r-- | 3864/CH9/EX9.2/Ex9_2.sce | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/3864/CH9/EX9.2/Ex9_2.sce b/3864/CH9/EX9.2/Ex9_2.sce new file mode 100644 index 000000000..2287a950a --- /dev/null +++ b/3864/CH9/EX9.2/Ex9_2.sce @@ -0,0 +1,54 @@ +clear +// +// + +//Initilization of Variables + +L=2000 //mm //Length of square column +E=12*10**3 //N/mm**2 //Modulus of Elasticity +sigma=12 //N/mm*2 //stress +W1=95*10**3 //N //Load1 +W2=200*10**3 //N //Load2 +FOS=3 + +//Calculations + +//From Euler's Formula +//P=%pi**2*E*I*(L**2)**-1 .........(1) + +//Working Load +//W=P*(FOS)**-1 + +//Part-1 + +//At W1=95*10**3 //N +//W1=P*(3*L**2)**-1 + +//Let 'a' be the side of the square +//I=1*12**-1*a**4 + +//sub value of I in Equation 1 and further rearranging we get +a=(W1*3*12*L**2*(%pi**2*E)**-1)**0.25 //mm + +//From Consideration of direct crushing +//sigma*a**2=W1 +//After Reaaranging the above equation we get +a2=(W1*(sigma)**-1)**0.5 //mm + +//required size is 103.67*103.67 i.e a*a + +//Part-2 + +//At W2=200*10**3 //N +//W2=P*(3*L**2)**-1 +//After substituting values and further Rearranging the above equation we get +a3=(W2*3*12*L**2*(%pi**2*E)**-1)**0.25 //mm + +//From consideration of direct compression,size required is +a4=(W2*sigma**-1)**0.5 + +//required size is 129.10*129.10 i.e a4*a4 + +//Result +printf("\n For W1 Load Required size is %0.2f mm**2",a*a) +printf("\n For W2 Load Required size is %0.2f mm**2",a4*a4) |