Exámen 24 junio 2010, preguntas PDF

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0h 15m

Mp1 Mp1 Mp2

Mp3

Mp2

0h 45m

Mp = 20

0h 20m

αL

βL

L



r 0 0 −r 0 0  0 1 e 0 −1 f  12EI  e e2 + g 0 −e ef − g  0  3 0 r 0 0 L  −r 0  0 −1 −e 0 1 −f 0 f ef − g 0 −f f 2 + g     A r = L2 12I g = 121 L2 e = L α + 21 f = L β + 12 E = 200 109 N/m2 I −3 2 4,25 10 m L = 10 m α = 0,25 β = 0,4

        = 4,25 10−5 m4 A =

1h 30m

o

C A B AB

E = 200 GPa α = 1 · 10−5 o C−1 I = 3,5 · 10−5 m4 A = 5 · 10−3 m2 k = 200 MN/m

0h 20m

1h 00m

E = 21 c

b 5

c

20...