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705_Mechanics Homework Mechanics of Materials Solution

705_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: mmm ' E: i i i :i i i m L_—.} W 75%.?” 13‘: fii: 13—??- 11,: g? rag—E! 6.48 A plate of 2-mm thickness is bent as shown and then used as a beam. For a vertical shear of 5 RN, determine the shearing stress at the five points indicated and sketch the shear flow in the cross section. SOLUTION I = 2 litmus? + {anus-13‘ + #203033 + WWW-‘3‘] - ‘3 r53.76 w/o‘ mm“ = 133.75 xto ‘ m Q“: (UCZQXRX :~ 57;, ”M3 = 57‘ “IO“ M!) 0.5 '= 0 Q4: Q5‘ (121mm): — 900 m? = —eooxto"’m‘ Q; = Q- (zttzqmn = -r.:7cx loss»? = - L176 filo-‘m‘ Q: = Qfi-t- (2362:.)(13) = 4-600 m»? =- —590>'!0" m3 a? W) " \OJTXID‘ Pa. ? l°.7€ “Pat 4 (133.1sxlo'*)(2vw") ' O L____L___'Efl _ _ 5yzo’) :00“ {1,2leo‘Pat = 4:.2J MP4. “‘3 033.7510‘1an'3 ) ' = Srlo‘)l,l1éxl0'ai , 22,0ugo‘h =- 22.0 MPa. "3 (133.7-filo'qu x10" ) ,. 13112125301312. — 9,3916% : 7.35MP4. 4 (a 33.7rxlo" )(1xlo‘3) — ...
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