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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 /3250/CH3/EX3.12 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3250/CH3/EX3.12')
| -rwxr-xr-x | 3250/CH3/EX3.12/Ex3_12.sce | 15 | ||||
| -rwxr-xr-x | 3250/CH3/EX3.12/Ex3_12.txt | 5 |
2 files changed, 20 insertions, 0 deletions
diff --git a/3250/CH3/EX3.12/Ex3_12.sce b/3250/CH3/EX3.12/Ex3_12.sce new file mode 100755 index 000000000..9d8acf773 --- /dev/null +++ b/3250/CH3/EX3.12/Ex3_12.sce @@ -0,0 +1,15 @@ +clc +// Given that +d = 50 // Diameter of the steel sheet in mm +t = 3 // Thickness of the steel sheet in mm +e = 1.75 // True fracture strain +Y = 2.1e3 // True fracture stress for the material in N/mm^2 +// Sample Problem 12 on page no. 149 +printf("\n # PROBLEM 3.12 # \n") +C_0 = (t/(1.36*exp(e)))*((2*exp(e))-1)/((2.3*exp(e))-1) +p = t*(1/2.45)*((1.9*exp(e))-1)/((2.56*exp(e))-1) +F = Y*C_0*%pi*d +W = (1/2)*(F)*(p)*(10^-3) +printf("\n The proper clearance between die and punch = %f mm, \n Maximum punching force = %f N, \n Energy required to punch the hole = %f J",C_0,F/1000,W) +// Answer in the book given as 45.74 J for energy required to punch the hole + diff --git a/3250/CH3/EX3.12/Ex3_12.txt b/3250/CH3/EX3.12/Ex3_12.txt new file mode 100755 index 000000000..43b4179b3 --- /dev/null +++ b/3250/CH3/EX3.12/Ex3_12.txt @@ -0,0 +1,5 @@ + # PROBLEM 3.12 #
+
+ The proper clearance between die and punch = 0.329240 mm,
+ Maximum punching force = 108.605364 N,
+ Energy required to punch the hole = 48.101933 J
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