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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /764/CH7/EX7.18.b/result7_18.txt | |
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initial commit / add all books
Diffstat (limited to '764/CH7/EX7.18.b/result7_18.txt')
| -rwxr-xr-x | 764/CH7/EX7.18.b/result7_18.txt | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/764/CH7/EX7.18.b/result7_18.txt b/764/CH7/EX7.18.b/result7_18.txt new file mode 100755 index 000000000..4b35b6c3a --- /dev/null +++ b/764/CH7/EX7.18.b/result7_18.txt @@ -0,0 +1,100 @@ +-->//(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 |