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1302_Mechanics Homework Mechanics of Materials Solution

1302_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 10.C1 10.01 A solid steel rod having an effective length of 500 mm is to be used as a compression strut to Carry a centric load P. For the grade of steel used E = 200 GPa and or = 245 MPa. Knowing that a factor of safety of 2.8 is required and using Euler's formula. write a computer program and use it to calculate the allowable centric load P," for values of the radius of the rod from 6 mm to 24 mm, using 2-mm increments. SOLUTION ENTER RADWS RAD) EFFECTIVE LENGTH L AND FACTOROF‘SAFETY F5 e COMPUTE RADIUS 0F GYR’ATION A = n Rant 77' R004. ...-. f"! J. 4 _ LE rVA pETERMIN E ALLOWABLE CENTRIC LOAD CRITICAL 51‘? ES 5: nae G, LE’T G‘ EQUAL SMALLER OF fir ANDU} 0A Pan : E PROGRAM OUTPUT Radius Critical Allowable of rod stress load m MPa kN .006 .008 71.1 2.87 126.3 9.07 4 . 639. . .020 '789. 109.96 .022 955. 133.05 1137. Below the dashed line we have: critical stress > yield strength ...
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