From db0855dbeb41ecb8a51dde8587d43e5d7e83620f Mon Sep 17 00:00:00 2001 From: Thomas Stephen Lee Date: Fri, 28 Aug 2015 16:53:23 +0530 Subject: add books --- .../Chapter_15.ipynb | 294 +++++++++++++++++++++ 1 file changed, 294 insertions(+) create mode 100755 Mechanical_Metallurgy_by_George_E._Dieter/Chapter_15.ipynb (limited to 'Mechanical_Metallurgy_by_George_E._Dieter/Chapter_15.ipynb') diff --git a/Mechanical_Metallurgy_by_George_E._Dieter/Chapter_15.ipynb b/Mechanical_Metallurgy_by_George_E._Dieter/Chapter_15.ipynb new file mode 100755 index 00000000..4b4e7632 --- /dev/null +++ b/Mechanical_Metallurgy_by_George_E._Dieter/Chapter_15.ipynb @@ -0,0 +1,294 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Chapter 15: Fundamentals of Metalworking" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Example 15.1, Mechanics of Metal Working, Page No. 506" + ] + }, + { + "cell_type": "code", + "execution_count": 9, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "\n", + "Enginering Strain = 1\n", + "True Strain = 0.693147\n", + "Reduction = 1\n", + "\n", + "\n", + "Enginering Strain = -0.5\n", + "True Strain = -0.693147\n", + "Reduction = -1\n" + ] + } + ], + "source": [ + "from math import log\n", + "\n", + "#For Bar which is double in length\n", + "#variable declaration 1\n", + "L2=2;\n", + "L1=1;\n", + "\n", + "#calculation 1\n", + "e=(L2-L1)/L1;\n", + "e1=log(L2/L1);\n", + "r=1-L1/L2;\n", + "\n", + "#result 1\n", + "print('\\nEnginering Strain = %g\\nTrue Strain = %g\\nReduction = %g')%(e,e1,r);\n", + "\n", + "\n", + "\n", + "#For bar which is halved in length\n", + "#variable declaration 2\n", + "L1=1;\n", + "L2=0.5;\n", + "\n", + "#calculation 2\n", + "e=(L2-L1)/L1;\n", + "e1=log(L2/L1);\n", + "r=1-L1/L2;\n", + "\n", + "#result 2\n", + "print('\\n\\nEnginering Strain = %g\\nTrue Strain = %g\\nReduction = %g')%(e,e1,r);\n" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "collapsed": true + }, + "source": [ + "### Example 15.2, Mechanics of Metal Working, Page No. 511" + ] + }, + { + "cell_type": "code", + "execution_count": 10, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "\n", + "Plastic work done in 1st step = 39752.1 lb/in^2\n", + "Plastic work done in 2nd step = 97934.8 lb/in^2\n", + "\n" + ] + } + ], + "source": [ + "\n", + "from scipy.integrate import quad\n", + "from math import log\n", + "\n", + "#variable declaration\n", + "D0=25.0;\n", + "D1=20.0;\n", + "D2=15.0;\n", + "def integrand(e):\n", + " return 200000*e**0.5\n", + "\n", + "#calculation\n", + "ep1=log((D0/D1)**2);\n", + "U1,U1_err=quad(integrand,0,ep1);\n", + "ep2=log((D1/D2)**2);\n", + "U2,U2_err=quad(integrand,ep1,ep1+ep2);\n", + "\n", + "#result\n", + "print('\\nPlastic work done in 1st step = %g lb/in^2\\nPlastic work done in 2nd step = %g lb/in^2\\n')%(U1,U2);" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Example 15.3, Hodography, Page No. 517" + ] + }, + { + "cell_type": "code", + "execution_count": 11, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Pressure = 2.88675\n" + ] + } + ], + "source": [ + "\n", + "from math import sin\n", + "from math import radians\n", + "\n", + "#variable declaration\n", + "alpha=60;\n", + "\n", + "#calculation\n", + "r=radians(alpha);\n", + "mu=1/sin(r);\n", + "p_2k=mu*5/2;\n", + "\n", + "#result\n", + "print('Pressure = %g')%(p_2k);" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Example 15.4, Temperature in Metalworking, Page No. 526" + ] + }, + { + "cell_type": "code", + "execution_count": 12, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "\n", + "Temperature Rise for aluminium = 78.4808 C\n", + "Temperature Rise for titanium = 162.686 C\n", + "\n" + ] + } + ], + "source": [ + "\n", + "\n", + "#variable declaration\n", + "Al_s=200;\n", + "Al_e=1;\n", + "Al_p=2.69;\n", + "Al_c=0.215;\n", + "Ti_s=400;\n", + "Ti_e=1;\n", + "Ti_p=4.5;\n", + "Ti_c=0.124;\n", + "J=4.186;\n", + "b=0.95;\n", + "\n", + "#calculation\n", + "Al_Td=Al_s*Al_e*b/(Al_p*Al_c*J);\n", + "Ti_Td=Ti_s*Ti_e*b/(Ti_p*Ti_c*J);\n", + "\n", + "#result\n", + "print('\\nTemperature Rise for aluminium = %g C\\nTemperature Rise for titanium = %g C\\n')%(Al_Td,Ti_Td);\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Example 15.5, Friction and Lubrication, Page No. 546" + ] + }, + { + "cell_type": "code", + "execution_count": 13, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "\n", + "For OD after deformation being 70 mm, Di = 22.3607 mm\n", + "Precent change in inside diameter = 25.4644 percent\n", + "Peak pressure = 1.93531\n", + "\n", + "\n", + "\n", + "\n", + "For OD after deformation being 81.4 mm, Di = 35.0137 mm\n", + "Precent change in inside diameter = -16.7124 percent\n", + "Peak pressure = 1.17321\n" + ] + } + ], + "source": [ + "\n", + "\n", + "from math import sqrt\n", + "\n", + "#variable declaration\n", + "Do=60;\n", + "Di=30;\n", + "def1=70;\n", + "def2=81.4;\n", + "h=10;\n", + "a=30;\n", + "\n", + "#calculation1\n", + "di=sqrt((Do**2-Di**2)*2-def1**2);\n", + "pr=(Di-di)/Di*100;\n", + "m=0.27;\n", + "p_s=1+2*m*a/(sqrt(3)*h);\n", + "\n", + "#result 1\n", + "print('\\nFor OD after deformation being 70 mm, Di = %g mm\\nPrecent change in inside diameter = %g percent\\nPeak pressure = %g')%(di,pr,p_s);\n", + "\n", + "#calculation 2\n", + "di=sqrt(def2**2-(Do**2-Di**2)*2);\n", + "pr=(Di-di)/Di*100;\n", + "m=0.05;\n", + "p_s=1+2*m*a/(sqrt(3)*h);\n", + "\n", + "#result 2\n", + "print('\\n\\n\\n\\nFor OD after deformation being 81.4 mm, Di = %g mm\\nPrecent change in inside diameter = %g percent\\nPeak pressure = %g')%(di,pr,p_s);\n" + ] + } + ], + "metadata": { + "kernelspec": { + "display_name": "Python 2", + "language": "python", + "name": "python2" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 2 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython2", + "version": "2.7.9" + } + }, + "nbformat": 4, + "nbformat_minor": 0 +} -- cgit