From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 3257/CH6/EX6.4/Ex6_4.sce | 21 +++++++++++++++++++++
 3257/CH6/EX6.4/Ex6_4.txt |  3 +++
 2 files changed, 24 insertions(+)
 create mode 100755 3257/CH6/EX6.4/Ex6_4.sce
 create mode 100755 3257/CH6/EX6.4/Ex6_4.txt

(limited to '3257/CH6/EX6.4')

diff --git a/3257/CH6/EX6.4/Ex6_4.sce b/3257/CH6/EX6.4/Ex6_4.sce
new file mode 100755
index 000000000..b762cc03d
--- /dev/null
+++ b/3257/CH6/EX6.4/Ex6_4.sce
@@ -0,0 +1,21 @@
+// Power required for rolling
+clc
+t1 = 20 // initial thickness in mm
+t2 = 12 // final thickness in mm
+R = 300 // roll radius
+N = 100 // rpm of roll
+w = 250 // width in mm
+K = 895 // in MPa
+n = 0.49 // from table
+mu = 0.1 // frictional coefficient
+printf("\n Example 6.4")
+L = sqrt((R*1e-3)*(t1-t2)*1e-3)
+epsilon = log(t1/t2)
+Y_bar = K*epsilon^n/(1+n)
+Y_bar_1 = Y_bar*(1+(mu*L/((t1+t2)*1e-3)))
+F = L*w*Y_bar_1*1e3
+p = 2*%pi*F*L*N/60000
+
+printf("\n Power required for rolling is %d kW.",p)
+// Answer in book is 3111kW
+
diff --git a/3257/CH6/EX6.4/Ex6_4.txt b/3257/CH6/EX6.4/Ex6_4.txt
new file mode 100755
index 000000000..c0a8db52f
--- /dev/null
+++ b/3257/CH6/EX6.4/Ex6_4.txt
@@ -0,0 +1,3 @@
+ 
+ Example 6.4
+ Power required for rolling is 3131 kW. 
\ No newline at end of file
-- 
cgit