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+{
+"cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 8: The Tension Test"
+ ]
+ },
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 8.1: Standard_properties_of_the_material.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"//Example 8.1\n",
+"//Standard properties of the material\n",
+"//Page No. 281\n",
+"clc;clear;close;\n",
+"\n",
+"D=0.505; //in inches\n",
+"Lo=2; //in inches\n",
+"Lf=2.53; //in inches\n",
+"Py=15000; //in lb\n",
+"Pmax=18500; //in lb\n",
+"Pf=16200; //in lb\n",
+"D_f=0.315; //in inches\n",
+"A0=%pi*D^2/4;\n",
+"Af=%pi*D_f^2/4;\n",
+"s_u=Pmax/A0;\n",
+"s0=Py/A0;\n",
+"s_f=Pf/A0;\n",
+"e_f=(Lf-Lo)/Lo;\n",
+"q=(A0-Af)/A0;\n",
+"printf('\nUltimate Tensile Strength = %g psi\n0.2 percent offset yield strength = %g psi\nBreaking Stress = %g psi\nElongation = %g percent\nReduction of Area = %g percent\n\n\nNote: Slight Computational Errors in book',s_u,s0,s_f,e_f*100,q*100);"
+ ]
+ }
+,
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 8.2: True_Strai.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"//Example 8.2\n",
+"//True Strain\n",
+"//Page No. 288\n",
+"clc;clear;close;\n",
+"\n",
+"//case 1\n",
+"Af=100; //in mm^2\n",
+"Lf=60; //in mm\n",
+"A0=150; //in mm^2\n",
+"L0=40; //in mm\n",
+"ef1=log(Lf/L0);\n",
+"ef2=log(A0/Af);\n",
+"printf('\nTrue Strain to fracture using changes in length = %g\nTrue Strain to fracture using changes in area = %g',ef1,ef2);\n",
+"\n",
+"//Case 2\n",
+"Lf=83; //in mm\n",
+"L0=40; //in mm\n",
+"Df=8; //in mm\n",
+"D0=12.8; //in mm\n",
+"ef1=log(Lf/L0);\n",
+"ef2=2*log(D0/Df);\n",
+"printf('\n\n\nFor More ductile metals\nTrue Strain to fracture using changes in length = %g\nTrue Strain to fracture using changes in diameter = %g',ef1,ef2);"
+ ]
+ }
+,
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 8.3: Ultimate_Tensile_Strength.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"//Example 8.3\n",
+"//Ultimate Tensile Strength\n",
+"//Page No. 290\n",
+"clc;clear;close;\n",
+"\n",
+"deff('y=sigma(e)','y=200000*e^0.33');\n",
+"E_u=0.33; //no unit\n",
+"sigma_u=sigma(E_u);\n",
+"s_u=sigma_u/exp(E_u);\n",
+"printf('Ultimate Tensile Strength = %g psi',s_u);"
+ ]
+ }
+,
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 8.4: Effect_of_Strain_Rate.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"//Example 8.4\n",
+"//Effect of Strain Rate\n",
+"//Page No. 298\n",
+"clc;clear;close;\n",
+"\n",
+"C_70=10.2; //in ksi\n",
+"C_825=2.1; //in ksi\n",
+"m_70=0.066; //no unit\n",
+"m_825=0.211; //no unit\n",
+"e1=1; //no unit \n",
+"e2=100; //no unit\n",
+"printf('\nAt 70deg F\n');\n",
+"sigma_a=C_70*e1^m_70;\n",
+"sigma_b=C_70*e2^m_70;\n",
+"\n",
+"printf('sigma_a = %g ksi\nsigma_b = %g ksi\nsigma_b/sigma_a = %g\n',sigma_a,sigma_b,sigma_b/sigma_a);\n",
+"printf('\n\nAt 825deg F\n');\n",
+"sigma_a=C_825*e1^m_825;\n",
+"sigma_b=C_825*e2^m_825;\n",
+"printf('sigma_a = %g ksi\nsigma_b = %g ksi\nsigma_b/sigma_a = %g\n',sigma_a,sigma_b,sigma_b/sigma_a);"
+ ]
+ }
+],
+"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
+}