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-rw-r--r--3776/CH2/EX2.11/Ex2_11.sce17
1 files changed, 11 insertions, 6 deletions
diff --git a/3776/CH2/EX2.11/Ex2_11.sce b/3776/CH2/EX2.11/Ex2_11.sce
index c4e15f631..4f9a017ec 100644
--- a/3776/CH2/EX2.11/Ex2_11.sce
+++ b/3776/CH2/EX2.11/Ex2_11.sce
@@ -1,21 +1,26 @@
clear
-mass = 4 //kg
+mass = 4 //kg
dist = 1 //mt freely falling distance
l = 1500 //mm length of rod
d = 15 //mm diameter
l_ab = 6.71 //inch
l_bc = 8.29 //inch
-E = 200 //GPA youngs modulus
+E = 200 //GPA youngs modulus
k = 4.5 // N/mm stiffness costant
F = mass*9.81// The force applying
-Area = 3.14*(d**2)/4
-// Two cases
-//youngs modulus
+Area = 3.14*(d**2)/4
+// Two cases
+//youngs modulus
e_y = F*l/(Area*E*(10**3))
// stiffness
-e_f = F/k
+e_f = F/k
//total
e = e_y +e_f
k = 1+(2/(e*(10**-3)))
stress_max_1 = F*(1+(k**0.5))/Area
printf("\n The maximum stress is: %0.3f MPa",stress_max_1)
+
+//for the rod without washer
+k2 = 1+(2/(e_y*(10**-3)))
+stress_max_2 = F*(1+(k2**0.5))/Area
+printf("\n The maximum stress for the rod without washer is: %0.3f MPa",stress_max_2)