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Diffstat (limited to '3705/CH2/EX2.8/Ex2_8.sce')
-rw-r--r-- | 3705/CH2/EX2.8/Ex2_8.sce | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/3705/CH2/EX2.8/Ex2_8.sce b/3705/CH2/EX2.8/Ex2_8.sce new file mode 100644 index 000000000..6f0fac5eb --- /dev/null +++ b/3705/CH2/EX2.8/Ex2_8.sce @@ -0,0 +1,31 @@ + +clear//
+
+//NOTE:The NOtation has been changed to ease coding
+//Variable Declaration
+d=0.005 //difference in length in inch
+L=10 //Length in inch
+//Area of copper and aluminium in sq.in
+Ac=2 //Area of copper
+Aa=3 //Area of aluminium
+//Modulus of elasticity of copper and aluminium in psi
+Ec=17000000 //Copper
+Ea=10**7 //Aluminium
+//Allowable Stress in psi
+Sc=20*10**3 //Copper
+Sa=10*10**3 //Aluminium
+
+//Calculation
+//Equilibrium is Pc+Pa=P
+//Hookes Law is delta_c=delta_a+0.005
+//Simplfying the solution we have constants we can directly compute
+A=d*Ec*(L+d)**-1
+B=Ec*Ea**-1
+C=L*B*(L+d)**-1
+sigma_a=(Sc-A)*C**-1
+
+//Using equilibrium equation
+P=Sc*Ac+sigma_a*Aa //Safe load in lb
+
+//Result
+printf("\n The safe load on the structure is %0.0f lb",P)
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