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

---
 764/CH7/EX7.18.b/result7_18.txt | 100 ++++++++++++++++++++++++++++++++++++++++
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(limited to '764/CH7/EX7.18.b/result7_18.txt')

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+-->//(Threaded Joints) Example 7.18
+ 
+-->//Refer Fig.7.35 on page 256
+ 
+-->//Maximum force acting on the assembly Pmax (kN)
+ 
+-->Pmax = 10
+ Pmax  =
+ 
+    10.  
+ 
+-->//Minimum force acting on the assembly Pmin (kN)
+ 
+-->Pmin = 0
+ Pmin  =
+ 
+    0.  
+ 
+-->//Yield tensile strength of 45C8 Syt (N/mm2)
+ 
+-->Syt = 380
+ Syt  =
+ 
+    380.  
+ 
+-->//Ultimate tensile strength of 45C8 Sut (N/mm2)
+ 
+-->Sut = 630
+ Sut  =
+ 
+    630.  
+ 
+-->//Young's modulus of the plain carbon steel E1 (N/mm2)
+ 
+-->E1 = 207000
+ E1  =
+ 
+    207000.  
+ 
+-->//Young's modulus of aluminium E2 (N/mm2)
+ 
+-->E2 = 71000
+ E2  =
+ 
+    71000.  
+ 
+-->//Fatigue stress concentration factor Kf
+ 
+-->Kf = 2.2
+ Kf  =
+ 
+    2.2  
+ 
+-->//Expected reliability (%)
+ 
+-->reliability = 90
+ reliability  =
+ 
+    90.  
+ 
+-->//Initial pre-load in the bolt Pi (kN)
+ 
+-->Pi = 5
+ Pi  =
+ 
+    5.  
+ 
+-->//Factor of safety fs
+ 
+-->fs = 2
+ fs  =
+ 
+    2.  
+ 
+-->//Length of the bolt l (mm)
+ 
+-->l = 25 + 25
+ l  =
+ 
+    50.  
+ 
+-->//Assume diameter of the bolt to be less than 7.5mm for Kb to be 1
+ 
+-->d = 1
+ d  =
+ 
+    1.  
+ 
+-->//As Ka is incorporated into Kf, assume the assembly to be ground
+ 
+-->//This is just to obtain a random value of Ka
+ 
+-->op = 1
+ op  =
+ 
+    1.  
+ 
+
+Core cross-section area of the bolt(A) = 54.133961 mm2
+ 
\ No newline at end of file
-- 
cgit