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Unformatted text preview: Exam 3
(3133400, Strengths, Summer 2008
Closed Book, Closed Notes
Thur, July 23rd 2008j 12:10 P.M~] :10 PM 6 Draw FEDS as required 9 Clearly state all assumptions made towards soiving the prob/fem 1) For the state of plane shown in fig. (1a), determine (a) The principal shear stresses and the principal shear planes , __
(b) The stresses ax], Jyl,TI/y/ for acting on the element shown in ﬁg. (1h) { . v (C) Mark the stresses 033/, Jyzyrpyz on the element shown in fig. (1b) 5'
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: (25 pts) 10(51) (a) (b) I Figure 1: 2) The state of strain in a, thin plate (plane stress conditions, v i 0.25) is given as
ea; : lOOn, 5y 2 140M $5 7353; : —30n. Determine the 3d maximum shear strain in the thin plate
(20 pts) {Please tum weir) 3) The reaction forces acting on the steel beam (E z 200 (62%)), shown in ﬁgure, are
Ag 2 3.8 (ICNMT) & By : 4.2(kNXi), Determine (e) The equation of the elastic curve from A to B (b) The equation of the elastic curve from B to C (c) The slope and deﬂection of the beam at C (30 pts) A. ‘ N j ‘smmus ...
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 Fall '09
 MOORTHY

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