MecE_380-W09-Midterm

MecE_380-W09-Midterm - Name: - - - Q1 (12 marks) A thin...

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---- Name: Q1 (12 marks) A thin plate of rhombus shape, as shown in the figure below, is subjected to uniform shear strless To along all ofthe four edges. (al (5 marksl Determine the stress state [~: ;;] expressed in the x-y coordinates, and (b) (7 marks) Let the dashed line OP be where the maximum shear stress ('tmax) is generated by 'to. Use Mohr's circle to determine the angle between line OP and x-axis in degrees (as indicated by e in the figure). Note: e < 90°.
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I Gl 0) (;1 =?;>t = Tor Sf.4.t'f.a.u i..$ I: ] Y- S\.f.r(!.e(!. ay ::: 0 Ay . . - = CcSbO A" .J,. ~ _ L' ss 1:/a ~'2r - 7: 29== ,gQ- 30 =1'>0
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Name: Q2 (6 marks) A uniform bar that has rectangular cross section 2hx b and specific weight y, hangs in the vertical plane. The bar is subjected to displacements: . h d" uy Int ex- ,rectlOn: u=--xy E in the y - direction: V=L[(y2 _0 2 )+u(x 2 +Z2)] 2E . h d" uy In I e Z - IrectlOn: W = - - y Z E where u is Poisson's ratio and E is Young's modulus Determine the maximwn shear strain
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This note was uploaded on 01/05/2010 for the course SA sa taught by Professor Sa during the Spring '09 term at A.T. Still University.

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MecE_380-W09-Midterm - Name: - - - Q1 (12 marks) A thin...

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