HW #6 solution ! .m m패 " =→ mB 세니 . . " 5 도 Find the . "며 I 먹 학차 = "= = voy 시다이 = . 다괴 = qc x- 3 78 KW 1 명 VQy - IEZ = 0 20 . t 11111 = 8694 × ( 5 10 - 5 m . k 151003 t 4 … y : 대에 f, m + zl 2 3000 065 … 개 ydy n on 5 + . i 5 f . . m 에 86939050 mmy 식울에더째 " KNI 에 =6. 2로7 12 시여 - . = % VQy 2162HS 094 = = qA 1 au . ( - 230153 IE = , I * IEZ 1090 = shear flow ad GXTS 3003 S 15 ydy s + SdAsydA y o d J .200 5 ydyt = . " meatra 에 nk , …. 01 / / - 11 ) 시에 , 111 11, 10015232 ) + k 153003 ti 5 z omm - = sydA *1 고 전 oun - = san - ( f xosoydytfiyioogoydy ) o 9 00 . 5 = 20 W mm mmA 150 오 s ㅡ IEz 150452 150 30 45 + 21 . 15030 + 3015630 . = R 100 고 = shear flow q F =- 6 5 kW 1 에 - mm F 4 27 = 10 0 4 m VQy - = IEE 6 5 4 + . 로 x F F ⇒ 0 . + . 슈 A Ʃ ' B 수 MB 8 F 1 - 262 = ⇒ 0 = F= 6 F2 261 원 c = kW . 5 F= 19 5 kN . < singularity function > FE 8 V 6 5 < x3 ' = - . Ke -430 + 19 . 5 Kx -8 6 . ↓ ↓ d - = - 6 5 <c30 . > - 1 5 + 6 . < 5 e-4 1 - 19 . EpK ) 5 - 870 MV 1 일 " g 4 : 6 5 - ⇒ Vma = 19 . 5 kN 2 x , shear Uma flow qmax 에 - = IEE QY 19 5 103 . 27 104 = omax = 38 max - 3010 = 4 875 MPa . × = 146250 N 서 6360150 . y dy - 10 9 15 t . ! a Neufrol * 방 Y axis sydA = f tzaydy = - sto + . SaA mat ㅡ 있다 (a + t) - ( 1 iytfydy ( ) . 5t 황높냐 * 까 는 더 3 a 4 lat 23 ) Maximym bendi 서 gmorment . dddldddddw xva ) UC=w ( 1 KCO C= ( Oa M ( x) M (o ) - = . .< ω K> < ' a + ) o - C , .< ← - G , ) w x 르 M 0 = CF - 10 a CZ 5 wba ⇒ ( = ) x tCG = o O Zw <x ) zt 5 w ( xF ax . : M . - ∞ = K Zw w = . 고 2 + 5 w 0 ac ( c- 5 a ) ' + 225 w0 az 고5 C= 50 ( Maximym - . stress at ascars compressive aximum y iax - 서바 작 ta IEZ - mn 3 y = ↑ a t 1 ocl = Mo : IEZ = 3 서 그 = 310 T 1 - y 이에 o 3 a * = 4 : IEE 12 11 = - 5t 5 ≈ - 16 = w apmmaxt z yoccarsat - stresr tensile ~ a 3 )( 2 a 23 = -t 3 ( atz ) ) t( 3 1 .5 t ) a( t ) zatt - la pt * 4 ( t w 25 afic IEzMmaxy tow 165 - 그 . = at ∴ w= otoT = ) ( t = 3 ) a tz [ f z 3 a ) t( la - zy ( if t < ca ) 2 4 . 61km ↑ - 고서 ㄴ 1 5 59 09 mm = . Bending m at moment a area - a C - (2 = 6 kN - 2 )X B 1 ( 고 6 km ] + X 2 5 X . × - 1B ( 59 09 × - 10 . 33 a 4 = 85909 kNn . AXIl force 25 Z 1 = D -2 : Mby oz. c, top = IEZ - Mb - bxk bottom . 085909 A - 16 19 422576 - 2576 - X (o t 152003 6 4 0 . . 59 wg × mmlkm 11000 . 091 l 61 = KN o ≈ 15 . 200 40 . . 91 ) p 4 ( Ho 6 - . P 3 = - 161 어 MPa P+ 3 = paXimom y shear force bar AB Tn : shear flow endure should Nails ↑1111111Qp a1 o oa 1 MP에 F 고 % ) . mpa fr 2 - m← → 8y = kN 5 3 1ㆍ X 10 . 0 m - 13 G LO 42 2576 = - kN ) X 6 103 [ 5909603 = 6 naMpa × 5 d m - ( 200 ) = . 3 ← (ㅁ 2 . - . RF 09 t . 2 ) 4 IKN aXTl = 42 석4 IEZ lomax = 5 = = , . 2502049 422576 X 10 bm = OKK 3 t - IEE o ( = Vmax > xd Z IEE = = - + 72 S yn x 1 B ) ( 1503= 100 mm 4 212250303 - = 72 × No bm 5 Q - 4 25 oydy = 450000 + 25030 . 602 ) 4 mmz = 4 5 시 : θ 04 spacing Anol IE ' m . - ABpITed Shear force for one nail P . 1xqty 3 = 1 λ2 : P 드 6 6 kN . + P + 3 ( KN ) at the interfacey ny … = × 보 KN q