hw_p16 - srmnu 9.5 Mac magma-lemon 575 Pmnlom 9.5-2 A(17112...

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Unformatted text preview: srmnu 9.5 Mac magma-lemon 575 Pmnlom 9.5-2: A {(17112 ABC is loaded a: palm c by 1 force P acting a! an angle a lo the horizmlvzl (see figure). soul mmbels ame fume have me sune lengm and me Sam; flexnnfl rigidity, Dem-mine me angle a so than me dcflzclion ufpoim c is in me same direclion as me but (Disregud me erred: of mu dcfonmlial'ls and consider only me effects of bending due m we load p.) Mm.- A direction or lnadulg such Lhal me msulflng deflection is in the sme direclion as me loud |S called a principal direclian. For a given load on a planar mum-re, there ue lwo principal dileclinns. perpendiculnr In each other. Sululinn 9.5-2. Principal dimfinns far I (hm: DEFLm'IONS DUE m THE Low P : (2P, — 3P2) (w the right) E _~3+xmnu 273mm meam. DIRECTIONS The defleolion of poi!“ C is in 1h: same dixecrion as P, and P2 are me oomponenu ofule land P “‘1: load P- P P —3 + 8 Ian 0; , cos a or tan a —E ”in a 2 — 3 Ian at P L: Rran'dnge and simplily: min + 2mm — o [F In ACI'S no": 8;, {—5100 me right) (quack-am: equminn) P‘Lz P,L’ Solving. an a l : Vi M 1(251)L 251 1125-. —67.5'. 4575”, .— (duwnwald) _ PZL’ IF P2 AL‘I‘SALUNE 5,, ~ E (lame lefi) P,L’ P21) (Pp “HP 5- — + = fl + ¥ = — " 3151 5“ 351 E] )L SE] (upward) ...
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