hw3_sol

hw3_sol - CEng ’ 00 2/ w . 2,1 ’ Twe gage marks are...

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Unformatted text preview: CEng ’ 00 2/ w . 2,1 ’ Twe gage marks are placed exactly 250 mm apart on a A12~mmv ' diameter alurmnum rod. Knowing that, with an ax'ial load of 6000 N acting on the rod, the distance between the gage marks is 250,18 mm, determine the I modulus of elastigity of the aluminum used in the rod. ' get/em L: 250mm, 8: 2W*I€»1$”D:0~)a~mm $5: é, 3 O‘igrov7&><’0 L 36” ’ w 5000 (N) g I 9am P:5oooC/\O, Trllfimm) 3 0-: .11: L r A WY], W’Xfix1040n2) : 53cm) over/0'3 2.4 A 28-ft lengthof V0.25—in.-diam¢t¢r gt‘eél wire’i'sixt, he used in a ’ hanger. It is noted that the wire stretches 0.45 in. when a tensile fbrce P is ap- ( plied. Knowing that EU: 29 X 10‘? psi, determinerazg)»thevrmagnitude of the force P, (b) the 'cenespunfiirig: merit-1&1 mass-in the wire. ‘ I a fluven Lima] gmMm @5; M 7/,33mr3 imam) , * .0 rip; L i 3mm, aim-gem) .394; fixaarxlaw} : 4’ “m " D g P . 3 - j , a ’ A138,“,— 4m9xx)o“2[th1] x)»33’></o 2.5 A control rod made of yellow brass must not stretch more than 3 mm when the tension in thewire is 4 kN. Knowing that E = 105 GM and that the maximum allowable normal stress is 180 MPa, determine (a) the smallest I diameter thai can be selected for the rod, (1)) the corresponding maximum Length of the. rod: F " “SM/an PC4ZN/ gmxi§fimm3 / E:/OS—C<I\PQ) 4¢mmx3 IQD’CMPQD ' DQQjVL baht” OvMAK 3 1) (reg—mm e L < “(95” “j / rxmowoé/N/mz} 7777’ 515 mm: 2- bexro”3€m 3. W {01mm : S’SLCMM 3‘ m . Dewy» {AYE 6mcxxflwkenaww‘may) ,1 c] x ,N‘. . ,3 . I. l. m S<8~W r? - é 3x10 cm) 47w Lé/DDWVC MW) 5 HM ><'/06[N/m1} - r”.— @Mfl 2.9 A block of 250-.mm length and 50 X 40mm cross 's'ection'ié to sup- POIT a centric compressive load P. The material to be uSed is a bronze for which E = 95 GPa. Determine the largest load which can be applied, knowing that thelnonlnal stress must riot exceed 80 MPa and that the decrease in length of the’blbck Should-be at most 0.12% 'of its original length; 'rflo'l/evv 1,:23‘OCMM3/ A, . Degcjm w-Yfi" Wm“ ,4 6 ’3‘ "3. .3: Uvg km 7:7 .EMi‘éKgfiOCM/fia) ~23; P§ Elmo [fiTyl/Hx/o (m) W LL /? < leééélém »Ee;53n W'Y-E gmmx ‘ ’ / fl *~> Cl" L é. 5mm :5 g o comm/Z gégmax M E, Ana ,3 v 7 p g o'omxmm (mljxcisx/og at Pg 228C214) “(2) ...
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This note was uploaded on 12/09/2009 for the course CE 3400 taught by Professor Moorthy during the Fall '09 term at LSU.

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hw3_sol - CEng ’ 00 2/ w . 2,1 ’ Twe gage marks are...

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