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1273_Mechanics Homework Mechanics of Materials Solution

1273_Mechanics Homework Mechanics of Materials Solution - 3...

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Unformatted text preview: 3 ‘l ‘76 CF 6'.” '“l -- “—— _.___—...._..-.~ _ . _ q s. 0". _ l—cx - J [-5 - kczE 6"? (L/aH" 6;: 3 j= 1%" W SEX—Cl ’ Ulla—‘LEKY‘ (:13 (12?.-ij = L.)1_ .>_c x 55; = 6; (0.515127) =- L =ol‘ K‘EE = 0.013 MVQ—wwo—fimm SOLUTION 9.: 25mm > lO§lea+ ’ 43.1110“3+ 0 x103 0.07.5 0.12:; 10.97 A rectangular column is made of sawn lumber that has an adjusted allowable PROBLEM 10-97 stress for compression parallcl to the grain ac = 8.3 MPa and a modulus of elasticity E = 11.1 GPa. Using the allowable-stress method, determine the largest allowable efi‘eaive length L that can used. 7192(0. Iso)(o weds = 207. sear/0"». '* 0.025m c: 13:: 0.1219,.“ 207. ’56 x (0"- : 3.9936 MPa 0.47.596 :- °|X 0| C. r.(o 4753 6) Z L“: 5g?!— omm Igposoo 2°:;;;'°°>= m ~ 3 Let X: Ga/Gé wlnev‘e C = 0.8 42>» San-m Downber may _ _><_ 97%”? - %X + 3‘ film: | — (o 2)(o.q-zsas) C) 47586 = 0. 51227 (3.3)(0.562275= H.666? MP0. to: 2‘10 MM :- 0.290w 43.211153 m‘ E: 11100 MPa 3.614% xio‘h ...
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