diff options
Diffstat (limited to 'Machine_Design_by_U.C._Jindal/Ch8.ipynb')
| -rw-r--r-- | Machine_Design_by_U.C._Jindal/Ch8.ipynb | 832 |
1 files changed, 832 insertions, 0 deletions
diff --git a/Machine_Design_by_U.C._Jindal/Ch8.ipynb b/Machine_Design_by_U.C._Jindal/Ch8.ipynb new file mode 100644 index 00000000..520e04b8 --- /dev/null +++ b/Machine_Design_by_U.C._Jindal/Ch8.ipynb @@ -0,0 +1,832 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:e4245d57622666881114047950aef2cecdad4d23a29878d669ecae5aa1b95679" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Ch:8 Springs" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-1 - Page 224" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "d=5#\n", + "D=30#\n", + "G=84*(10**3)#\n", + "Na=15#\n", + "#Axial Load W\n", + "W=300#\n", + "#Spring index C\n", + "C=30/5#\n", + "#Shear stress Augmentation factor Ks\n", + "Ks=((2*C)+1)/(2*C)#\n", + "#Wahl's factor Kw\n", + "Kw=(((4*C)-1)/((4*C)-4))+(0.615/C)#\n", + "#Curvature correction factor Kc\n", + "Kc=Kw/Ks#\n", + "#Spring stiffness k\n", + "k=(G*(d**4))/(8*(D**3)*Na)#\n", + "#Axial deflection delta\n", + "delta=W/k#\n", + "print \" Ks is %0.4f \"%(Ks)#\n", + "print \"\\n Kw is %0.4f \"%(Kw)#\n", + "print \"\\n Kc is %0.3f \"%(Kc)#\n", + "print \"\\n The Spring Stiffness is %0.1f N/mm\"%(k)#\n", + "print \"\\n The Axial deflection is %0.3f mm\"%(delta)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Ks is 1.0000 \n", + "\n", + " Kw is 1.1025 \n", + "\n", + " Kc is 1.103 \n", + "\n", + " The Spring Stiffness is 16.0 N/mm\n", + "\n", + " The Axial deflection is 18.000 mm\n" + ] + } + ], + "prompt_number": 15 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-2 - Page 224" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from math import pi\n", + "W=196.2#\n", + "lenthofscale=50#\n", + "k=196.2/50#\n", + "C=8#\n", + "Ks=(1+(0.5/C))#\n", + "\n", + "# Let us choose oil tempered wire 0.6-0.7 %C. Refer to Table 8-4 for constants A and m, relating strength wire \n", + "#diameter.\n", + "G=77.2*(10**3)#\n", + "A=1855#\n", + "m=0.187#\n", + "# equating Tmax=0.5*sig(ut).\n", + "# Ks*(8*W*D/(pi*(d**3)))=0.5*A/(d**2)\n", + "d1=(Ks*(8*W*C/(pi*A*0.5)))#\n", + "d=d1**(1/1.813)#\n", + "D=C*d#\n", + "Na=G*(d**4)/(8*(D**3)*k)#\n", + "#Solid length = SL\n", + "SL=(Na-1)*d\n", + "\n", + "print \" wire diameter is %0.3f mm \"%(d)#\n", + "print \"\\n mean diameter is %0.3f mm \"%(D)#\n", + "print \"\\n Number of acting coils are %0.3f \"%(Na)#\n", + "\n", + "#The difference in the values of d,D and Na is due to rounding-off the digits." + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " wire diameter is 2.314 mm \n", + "\n", + " mean diameter is 18.516 mm \n", + "\n", + " Number of acting coils are 11.117 \n" + ] + } + ], + "prompt_number": 16 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-3 - Page 225" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "d=1.626#\n", + "A=2211#\n", + "m=0.145#\n", + "rm=3#\n", + "ri=(rm-(d/2))#\n", + "sigma=A/(d**m)#\n", + "W=(sigma*pi*(d**3)*ri)/(32*(rm**2))#\n", + "print \" Ultimate tensile Strength is %0.1f MPa \"%(sigma)#\n", + "print \"\\n Force at which the spring hook fails is %0.1f N \"%(W)#\n", + "\n", + "#The difference in the values of sigma and W is due to rounding-off the digits." + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Ultimate tensile Strength is 2060.5 MPa \n", + "\n", + " Force at which the spring hook fails is 211.3 N \n" + ] + } + ], + "prompt_number": 17 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-4 - Page 226" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "Do=25#\n", + "# mean coil diameter D=25-d\n", + "W=150#\n", + "T=800#\n", + "G=81000#\n", + "# Substituting values in equation T=8*W*D/(pi*(d**3))\n", + "# therefore, the equation becomes d**3 + 0.477*d = 11.936\n", + "#consider d=2.2mm, (d can be taken between 2.2-2.3mm)\n", + "d=2.337# #(nearest available wire gauge)\n", + "C=9.5#\n", + "D=22.2# \n", + "Do=D+d#\n", + "Ks=1+(0.5/C)#\n", + "Tmax=Ks*8*W*D/(pi*(d**3))#\n", + "# check for safety- Tmax<T#\n", + "Lo=100#\n", + "Ls=40#\n", + "#Lo=Ls+delta+0.15*delta\n", + "delta=(Lo-Ls)/1.15#\n", + "delta=50#\n", + "k=150/50#\n", + "Na=(G*d**4)/(8*(D**3)*k)#\n", + "\n", + "N=Na+2#\n", + "Ls=N*d#\n", + "Lo=Ls+(1.15*delta)#\n", + "print \" d is %0.3fmm \"%(d)#\n", + "print \"\\n D is %0.2f mm\"%(D)#\n", + "print \"\\n Ls is %0.2f mm\"%(Ls)#\n", + "print \"\\n Lo is %0.2f mm\"%(Lo)#\n", + "if (Do<=25):\n", + " print '\\nThe diameter is within space constraints'" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " d is 2.337mm \n", + "\n", + " D is 22.20 mm\n", + "\n", + " Ls is 26.18 mm\n", + "\n", + " Lo is 83.68 mm\n", + "\n", + "The diameter is within space constraints\n" + ] + } + ], + "prompt_number": 18 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-5A - Page 227" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "Di=15#\n", + "Do=20#\n", + "d=2.3#\n", + "D=17.5#\n", + "C=D/d#\n", + "Ks=1+(0.5/C)#\n", + "Wmax=100#\n", + "Tmax=Ks*8*Wmax*D/(pi*(d**3))#\n", + "G=81000#\n", + "delmax=67.7/2.366#\n", + "k=100/28#\n", + "Na=G*(d**4)/(8*k*(D**3))#\n", + "Ls=Na+1# #(for plain ends)\n", + "delmax=28#\n", + "#TL= total working length\n", + "TL=Ls+delmax+(0.15*delmax)#\n", + "print \" d is %0.1fmm \"%(d)#\n", + "print \"\\n C is %0.1f \"%(C)#\n", + "print \"\\n Na is %0.1f \"%(Na)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " d is 2.3mm \n", + "\n", + " C is 7.6 \n", + "\n", + " Na is 17.6 \n" + ] + } + ], + "prompt_number": 19 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-6 - Page- 228" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# 18 SWG=1.219MM in dia\n", + "d=1.219#\n", + "E=198.6*10**3#\n", + "G=80.7*10**3#\n", + "m=0.19#\n", + "A=1783#\n", + "sig=A/(d**m)#\n", + "Tys=(0.4*sig)#\n", + "Do=12.5#\n", + "D=Do-d#\n", + "C=D/d#\n", + "Ks=((2*C)+1)/(2*C)#\n", + "W=(Tys*pi*(d**3))/(8*D*Ks)#\n", + "Nt=13.5#\n", + "Na=Nt-2#\n", + "Del=(8*W*(D**3)*Na)/(G*(d**4))#\n", + "Ls=(Nt-1)*d#\n", + "Lo=Ls+Del+(0.15*Del)#\n", + "print \" Tys is %0.1f MPa \"%(Tys)#\n", + "print \"\\n W is %0.1f N \"%(W)#\n", + "print \"\\n del is %0.3f mm \"%(Del)#\n", + "print \"\\n Ls is %0.4f mm \"%(Ls)#\n", + "print \"\\n Lo is %0.2f mm \"%(Lo)#\n", + " \n", + "#Answers in the book for Torsional yeild strength have been rounded-off to the nearest whole number." + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Tys is 686.9 MPa \n", + "\n", + " W is 41.1 N \n", + "\n", + " del is 30.457 mm \n", + "\n", + " Ls is 15.2375 mm \n", + "\n", + " Lo is 50.26 mm \n" + ] + } + ], + "prompt_number": 20 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-7 - Page 228" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "d=1.016#\n", + "A=2211#\n", + "m=0.145#\n", + "G=81000#\n", + "Nt=16#\n", + "Na=16-2#\n", + "sig=A/(d**m)#\n", + "Tys=0.45*sig#\n", + "Do=12.6#\n", + "D=Do-d#\n", + "C=D/d#\n", + "Ks=1+(0.5/C)#\n", + "W=(Tys*pi*(d**3))/(8*D*Ks)#\n", + "k=(G*(d**4))/(8*(D**3)*Na)#\n", + "Del=W/k#\n", + "Ls=(Nt-1)*d#\n", + "Lo=Ls+(1.15*Del)#\n", + "\n", + "print \"Tys is %0.1f MPa \"%(Tys)#\n", + "print \"\\n Do is %0.1f N \"%(Do)#\n", + "print \"\\n W is %0.1f N \"%(W)#\n", + "print \"\\n k is %0.3f N \"%(k)#\n", + "print \"\\n del is %0.2f mm \"%(Del)#\n", + "print \"\\n Ls is %0.2f mm \"%(Ls)#\n", + "print \"\\n Lo is %0.3f mm \"%(Lo)#\n", + " \n", + "if ((Lo/D)>=5.26):\n", + " print 'The spring will fail under buckling'\n", + "\n", + "\n", + "#Values after the decimal point has not been considered for answer of Torsional yeild strength in the book, whereas answers for deflection and free-length is different as entire value of variables is taken for calculation in the code." + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Tys is 992.7 MPa \n", + "\n", + " Do is 12.6 N \n", + "\n", + " W is 33.8 N \n", + "\n", + " k is 0.496 N \n", + "\n", + " del is 68.20 mm \n", + "\n", + " Ls is 15.24 mm \n", + "\n", + " Lo is 93.669 mm \n", + "The spring will fail under buckling\n" + ] + } + ], + "prompt_number": 21 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-8 - Page 229" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "d=2#\n", + "Do=20#\n", + "D=Do-d#\n", + "C=D/d#\n", + "Na=9#\n", + "#Material hard drawn spring steel\n", + "A=1783#\n", + "m=0.19#\n", + "G=81000#\n", + "sig=A/(d**m)#\n", + "Tys=0.45*sig\n", + "Kf=1.5#\n", + "Ta=Tys/Kf#\n", + "Ks=1+(0.5/C)#\n", + "W=(Ta*pi*(d**3))/(8*D*Ks)#\n", + "k=(G*(d**4))/(8*(D**3)*Na)#\n", + "Del=W/k#\n", + "Lo=((Na+1)*d)+(1.15*Del)#\n", + "p=(Lo-d)/Na#\n", + "print \"k is %0.3f N/mm \"%(k)#\n", + "print \"\\n W is %0.1f N \"%(W)#\n", + "print \"\\n Lo is %0.3f mm \"%(Lo)#\n", + "print \"\\n p is %0.3f mm \"%(p)#\n", + " \n", + " \n", + "if ((Lo)>=47.34):\n", + " print 'The spring will fail under buckling'\n", + "\n", + "#The answer for value of spring rate 'k' is misprinted in the book. Due to this all subsequent values of del,Lo,p is calucated incorrectly in the book." + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "k is 3.000 N/mm \n", + "\n", + " W is 77.5 N \n", + "\n", + " Lo is 49.720 mm \n", + "\n", + " p is 5.302 mm \n", + "The spring will fail under buckling\n" + ] + } + ], + "prompt_number": 22 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-9 - Page 230" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# for music wire\n", + "d1=11.5#\n", + "A=2211#\n", + "d=1.5#\n", + "m=0.145#\n", + "sigut=A/(d**m)#\n", + "sigy=0.78*sigut#\n", + "Do=16#\n", + "E=2*(10**5)#\n", + "Nb=4.25#\n", + "D=Do-d#\n", + "C=D/d#\n", + "Ki=((4*(C**2))-C-1)/(4*C*(C-1))#\n", + "Mmax=(sigy*pi*(d**3))/(32*Ki)#\n", + "kc=((d**4)*E)/(10.8*D*Nb)#\n", + "theta3=Mmax/kc#\n", + "l1=20#\n", + "l2=20#\n", + "Ne=(l1+l2)/(3*pi*D)#\n", + "Na=Nb+Ne#\n", + "k=((d**4)*E)/(10.8*Na*D)#\n", + "thetat=Mmax/k#\n", + "ke=(3*pi*(d**4)*E)/(10.8*(l1+l2))#\n", + "# angdisp=theta1+theta2=Mmax/ke#\n", + "angdisp=Mmax/ke#\n", + "#D1 is final coil diameter\n", + "D1=(Nb*D)/(Nb+theta3)#\n", + "#IRC=Initial radial clearance\n", + "IRC=((D-d)-d1)/2#\n", + "#FRC=Final radial clearance\n", + "FRC=((D1-d)-d1)/2#\n", + "\n", + "\n", + "\n", + "print \" Maximum Torque is %0.2f Nmm \"%(Mmax)#\n", + "print \"\\n theta3 is %0.3f turns \"%(theta3)#\n", + "print \"\\n Ne is %0.3f turns \"%(Ne)#\n", + "print \"\\n ke is %0.1f N/mm \"%(ke)#\n", + "print \"\\n theta1+theta2 is %0.4f turns \"%(angdisp)#\n", + "print \"\\n D1 is %0.2f mm \"%(D1)#\n", + "print \"\\n IRC is %0.2f mm \"%(IRC)#\n", + "print \"\\n FRC is %0.2f mm \"%(FRC)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Maximum Torque is 497.25 Nmm \n", + "\n", + " theta3 is 0.327 turns \n", + "\n", + " Ne is 0.293 turns \n", + "\n", + " ke is 22089.3 N/mm \n", + "\n", + " theta1+theta2 is 0.0225 turns \n", + "\n", + " D1 is 13.46 mm \n", + "\n", + " IRC is 0.75 mm \n", + "\n", + " FRC is 0.23 mm \n" + ] + } + ], + "prompt_number": 23 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-10 - Page 231" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "A=1783#\n", + "m=0.190#\n", + "d=1.5#\n", + "D=15#\n", + "M=300#\n", + "E=20800#\n", + "k=30#\n", + "#sigult= ultimate strength of the material\n", + "# sigy= yield strength of the material\n", + "sigult=A/(d**m)#\n", + "sigy=0.7*sigult#\n", + "#siga= allowable yield strength of the material\n", + "siga=sigy/2#\n", + "C=D/d#\n", + "Ki=(4*(C**2)-C-1)/(4*C*(C-1))#\n", + "Z=pi*(d**3)/32#\n", + "#sigb=bending strength of the material#\n", + "sigb=Ki*M/Z#\n", + "while (sigb>=siga) :\n", + " d=d+0.15#\n", + " D=15#\n", + " C=D/d#\n", + " sigult=A/(d**m)#\n", + " sigy=0.7*sigult#\n", + " siga=sigy/2#\n", + " Ki=(4*(C**2)-C-1)/(4*C*(C-1))#\n", + " Z=pi*(d**3)/32#\n", + " sigb=Ki*M/Z#\n", + "\n", + "d=2## rounding off the value of the diameter.\n", + "Na=(d**4)*E/(64*D*k)#\n", + "print \" d is %0.1f mm \"%(d)#\n", + "print \"\\n D is %0.1f mm \"%(D)#\n", + "print \"\\n Na is %0.2f mm \"%(Na)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " d is 2.0 mm \n", + "\n", + " D is 15.0 mm \n", + "\n", + " Na is 11.00 mm \n" + ] + } + ], + "prompt_number": 24 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-11 - Page 231" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "L=1180#\n", + "W=40*(10**3)#\n", + "Nf=2#\n", + "Ng=8#\n", + "E=207*(10**3)#\n", + "#sigut is ultimate strength\n", + "sigut=1400#\n", + "FOS=2#\n", + "#siga= allowable yield strength of the material\n", + "siga=1400/2#\n", + "#sigbf=bending strength in full length\n", + "sigbf=700#\n", + "b=75#\n", + "t=((4.5*W*L)/(((3*Nf)+(2*Ng))*sigbf))**(0.5)#\n", + "t=14#\n", + "I=(Nf*b*(t**3))/12#\n", + "Wf=(3*Nf*W)/((3*Nf)+(2*Ng))#\n", + "Del=(Wf*(L**3))/(48*E*I)#\n", + "print \" t is %0.0f mm \"%(t)#\n", + "print \"\\n Wf is %0.0f N \"%(Wf)#\n", + "print \"\\n I is %0.0f mm**4 \"%(I)#\n", + "print \"\\n del is %0.1f mm \"%(Del)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " t is 14 mm \n", + "\n", + " Wf is 10909 N \n", + "\n", + " I is 34300 mm**4 \n", + "\n", + " del is 52.0 mm \n" + ] + } + ], + "prompt_number": 25 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-12A - Page 232" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "W=80000#\n", + "sigbfr=500#\n", + "L=1100#\n", + "Nf=3#\n", + "Ng=10#\n", + "N=Nf+Ng#\n", + "t=((1.5*W*L)/(N*6*sigbfr))**(1/3)#\n", + "t=15#\n", + "b=6*t#\n", + "E=207*10**3#\n", + "deli=(W*(L**3))/(8*E*N*b*(t**3))#\n", + "Wi=(W*Nf*Ng)/(N*((3*Nf)+(2*Ng)))#\n", + "print \" t is %0.1f mm \"%(t)#\n", + "print \"\\n deli is %0.1f mm \"%(deli)#\n", + "print \"\\n Wi is %0.0f N \"%(Wi)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " t is 15.0 mm \n", + "\n", + " deli is 16.0 mm \n", + "\n", + " Wi is 6366 N \n" + ] + } + ], + "prompt_number": 26 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-13 - Page 233" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#ultimate strength=sigut\n", + "sigut=1500#\n", + "C=7#\n", + "d=3#\n", + "D=C*d#\n", + "Ks=1+(0.5/C)#\n", + "Kw=(((4*C)-1)/((4*C)-4))+(0.615/C)#\n", + "Pmax=120#\n", + "Pmin=40#\n", + "Pm=80#\n", + "Tm=(Ks*8*Pm*D)/(pi*(d**3))#\n", + "Ta=(Kw*8*Pmin*D)/(pi*(d**3))#\n", + "Tse=0.22*sigut#\n", + "Tys=0.45*sigut#\n", + "x=(Tys-(0.5*Tse))/(0.5*Tse)#\n", + "y=((x)*Ta)+Tm#\n", + "FOS=(Tys/y)#\n", + "print \" Tm is %0.2f MPa \"%(Tm)#\n", + "print \"\\n Ta is %0.1f MPa \"%(Ta)#\n", + "print \"\\n FOS is %0.3f \"%(FOS)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Tm is 169.77 MPa \n", + "\n", + " Ta is 86.2 MPa \n", + "\n", + " FOS is 1.548 \n" + ] + } + ], + "prompt_number": 27 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "exa 8-14 - Page 234" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "Tse=360#\n", + "Tys=660#\n", + "d=25#\n", + "P=0.03#\n", + "m=40#\n", + "Pmin=((pi*(d**2)*P)/4)+(m*9.81/1000)#\n", + "k=6#\n", + "#Additional load= Padd=k*further compression in spring\n", + "Padd=k*10#\n", + "Pmax=Padd+Pmin#\n", + "Pm=(Pmax+Pmin)/2#\n", + "Pa=(Pmax-Pmin)/2#\n", + "d=2#\n", + "D=12#\n", + "C=6#\n", + "Ks=1+(0.5/C)#\n", + "Ks=1.083#\n", + "Kw=(((4*C)-1)/((4*C)-4))+(0.615/C)#\n", + "Ta=(Kw*8*Pa*D)/(pi*(d**3))#\n", + "Tm=(Ks*8*Pm*D)/(pi*(d**3))#\n", + "x=(Tys-(0.5*Tse))/(0.5*Tse)#\n", + "y=((x)*Ta)+Tm#\n", + "FOS=(Tys/y)#\n", + "print \" Tm is %0.2f MPa \"%(Tm)#\n", + "print \"\\n Ta is %0.3f MPa \"%(Ta)#\n", + "print \"\\n FOS is %0.2f \"%(FOS)#" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " Tm is 186.64 MPa \n", + "\n", + " Ta is 126.337 MPa \n", + "\n", + " FOS is 1.26 \n" + ] + } + ], + "prompt_number": 28 + } + ], + "metadata": {} + } + ] +}
\ No newline at end of file |