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	   "source": [
       "# Chapter 1: What Is Mechanical Design"
	   ]
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		   "source": [
			"## Example 1.2: Sample_Engineering_Calculation.sce"
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"clc;\n",
"clear;\n",
"mprintf('MACHINE DESIGN \n Timothy H. Wentzell, P.E. \n EXAMPLE-1.2   Page 13 ')    //Example 1.2\n",
"Sy=61000                   //[psi] Tensile strength of AISI 1020 cold drawn steel from Appendix 4 Page no 470\n",
"SF=2;                      //[] safety factor\n",
"F=300;                     //[lb] Weight of the ball\n",
"L=36;                      //[in] Length of round bar\n",
"Sy=61000;                  //[psi] Tensile strength from Appendix 4\n",
"M=F*L;                     //[in*lb] Bending moment Appendix 2\n",
"Sall=Sy/SF;                //[psi] Allowable stress \n",
"Z=M/Sall;                  //[in^3] Section modulus for bending Sall=M/Z\n",
"D=(32*Z/%pi)^(1/3);        //[in] Diameter of bar\n",
"//Use 13/8 in bar\n",
"D1=1.625;\n",
"mprintf('\n\n Diameter of Bar is %f in',D1);\n",
"//Checking Deflection\n",
"I=%pi*D1^4/64;              //[in^4] Moment of inertia Appendix 3\n",
"E=30*10^6;                  //[lb/in^2] Modulus of elasticity\n",
"Delta=F*L^3/(3*E*I);        //[in] Deflection \n",
"//Note- In the book I=0.342 in^4 is used instead of I=0.3422814 in^4\n",
"mprintf('\n The deflection of bar is %f in',Delta);\n",
"//Note: The deviation of answer from the answer given in the book is due to round off error.(In the book values are rounded while in scilab actual values are taken)"
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