hw4_sol - 2.19 Both porticms 9f the rod ABC are made Of an...

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Unformatted text preview: \ 2.19 Both porticms 9f the rod ABC are made Of an aluminum for which = [0 GPa. Knowing that thfi magnitude of P is 4 kN, datarmina (a) {he value Of Q so that the deflection 8.? A is zero, (1’)) the corresponding deflection 0f 8. 13 A l % i E .i g 20mm: dim’nefer 0.4» m ‘ 0‘5 m 604nm diameter I 3 Fig. P219 and $32.29 “kw...” L 222 For the steal truss (E = 29 X 106 psi) and beading shown, data: mine the deformations of (he members ED and DE, knowing {hat their @3333» sectional areas are 2 in3 and 3 i133, raspectiveiy. 2.27 Each of the links AB and CD is made 0f aluminum (E = 75 GPa) and has a CI‘Oss—ssctional arm of 125 mmz, Knowing that they support the rigid member BC, d€fem’xine the deflection of point B 4 J, S 035 m ’13 ' i C H19 044 m ——>% 0.20 m 2 if} if #1 w; ’3’“ i k 3 t 5*“ ‘ ‘n 2.193 Both portions of the red ABC are made of an aluminum f0: which 5 = 70 GPa. Knowing that the magnituds at" P is 4 kN, derarmine (a) {he vaiua A 0f Q 30 that the deflection MA is zero, (2:) tbs correspsnding daflsction of Ba 4 5 fl WG—fi/‘V w—777A# h"""“ « w _ “an? 7777 77777777 77 i i 7 a 7 n VH7,” a 77777 A” WV '77 < 7 ‘ ‘v 7 & 20mm diameter O»; B 60mm diametexw 1“ ; finiéfl‘i‘) "i‘ fl ~~ fl ‘ hg PER? 5mg r:224: % %% .a Mi} 9 we: ‘2 x x P 4alw3fi? ?§::53%”Q3§£§ ’ ’ ’ T; ' ‘ b 3‘1 ‘ . ’ 3’: «3:3; igg’xélg mg . ‘ffgg: 3A F] fg5»¥a «WWW D wwww:wf§iffijww~ * & i”~“;%:::T” E Pflfi “5 + PgaLEa :15; :17"; @va * x2.) jigsaw“) $fi“fi§ 33; 2c - fi;32%€aw Y 0'2» 15 _, L _‘ 2,332 For the steel truss (E = 29 X 105 psi) and loading shown, deter— mine the deformations of the members 80 and DE? knowing that their C1‘OSS~ sectional areas are 2 in2 and 3 ml, respectively. 30 laps A 227 Each of the links AB and CD is made 0f aluminum (E = 75 GPa) Wm“ “WM”: and has a cross—sectima} area of 125 mm? Knowing [hat they suppofi the rigid membcr BC, determine the deflection of point 8 _ A (’l t I *1 " m (f? ‘5 “ 11$??? i" {3% ii» wwwmmwé -. “ ‘WMN W fi we ‘ a} T” {)3 {g C N f: [’3 fif‘géé’ééai‘ggK 3 4’ ‘5‘? 3:? ’62?” i F g i7 ‘ *ammww‘fi. .; «a 1 WM W“ paw? r 1 2% w s M, f a W 9 WWW :30 Di? " 237 The 1.5—m concrete, post is reinfqmed with six steel bars, each with a 28—mm diametar. Knowing that Es i 200 GPa 81141 E: = 25 (3%, determine the normal stresses in the $333] and in {ha generate when a ISSO—kN axial ' P . ; centric force F is appfied to the pest - 450 mm that of brass, are joinzid - the leading ShGWfl and i a reactions at 211 rods, on: of steel and the a rts at A and E. For = 105- G‘Pa, detsrm 2.41 Two cylindric restrainad by figid suppa E5 = 200 GE’a and E, n of 90331 C, A 1‘30, , 7100 ‘ at C and knowing that ins {a} th A and E‘ (b) the deficctio r—‘ISO-fi-g—HMO g1 40—min (film 530-er dzam , ( z i i Z ,. bf? e E819. é E , ‘ ' E g 2.0:? figrfifq/JOOCM) 351/5 :gE’ug 5 3 "\ {‘3 J , 002,16 3 [may ZA/o V [2% ’ (3/ 7 —« r~ ‘2 E L/D .9. Lilt : {3 ML” £523 T453 {E E3? N 2.} ' » ’og ma? W 3 x; A :"m “‘W .1 WAD" / "' (’"i/ ; : 74, 310 (N) aqflm) 1010+ Grizmlxj] 1“ M ‘ [m 7&2!) {IN} 530M030\1)2§O ’125m)+ goX/iggé’p/DX OHM} + _ 25mm viz/“m v J J '7 ’-«=—'—'r. ’ ,I )OOKmECNMOaMm] 7 M”! wfl TEA/32 (N) ‘ “fly/“WWW”; [waggckrfl ¢- cf; 3&3 ~maU3N) :f”37a=)é Cm!) WV E r _. cs" yGJ w' " 7 i __ (A I; . I Pf} M CDEC DJ: :[28 kg} #228 éuszJW/W/zgg ' Wag 53% £3: 43:. L533 493 3% {5195: {Mm mm) + 2 &gx;93(z\:)><osi2m3 ...
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