1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 7: Fracture"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.1: Cohesive_Strength.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Example 7.1\n",
"//Cohesive Strength\n",
"//Page No. 245\n",
"clc;clear;close;\n",
"\n",
"E=95; //in GPa\n",
"E=E*10^9; //conversion to Pa\n",
"Ys=1000; //erg/cm^2\n",
"Ys=Ys*10^-3; //conversion to J/m^2\n",
"a0=1.6; //in angstrom\n",
"a0=a0*10^-10; //conversion to m\n",
"sigma_max=(E*Ys/a0)^(1/2)\n",
"sigma_max=sigma_max*10^-9;\n",
"printf('Cohesive strength of a silica fiber = %g GPa',sigma_max);"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.2: Fracture_Stress.sce"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Example 7.2\n",
"//Fracture Stress\n",
"//Page No. 246\n",
"clc;clear;close;\n",
"\n",
"E=100; //in GPa\n",
"E=E*10^9; //conversion to Pa\n",
"Ys=1; //J/m^2\n",
"a0=2.5*10^-10; //in m\n",
"c=10^4*a0;\n",
"sigma_f=(E*Ys/(4*c))^(1/2);\n",
"sigma_f=sigma_f*10^-6;\n",
"printf('Fracture Stress = %g MPa',sigma_f);"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Scilab",
"language": "scilab",
"name": "scilab"
},
"language_info": {
"file_extension": ".sce",
"help_links": [
{
"text": "MetaKernel Magics",
"url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
}
],
"mimetype": "text/x-octave",
"name": "scilab",
"version": "0.7.1"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
