07-01ChapGere.0001

07-01ChapGere.0001 - y s x 5 6500 psi s y 5 1700 psi t xy 5...

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Plane Stress Problem 7.2-1 An element in plane stress is subjected to stresses s x 5 6500 psi, s y 5 1700 psi, and t xy 5 2750 psi, as shown in the figure. Determine the stresses acting on an element oriented at an angle u 5 60° from the x axis, where the angle u is positive when counterclockwise. Show these stresses on a sketch of an element oriented at the angle u . Solution 7.2-1 Plane stress (angle u ) 7 Analysis of Stress and Strain 425 y x O t xy = 2750 psi s y = 1700 psi s x = 6500 psi x O 3450 psi u 5 60 8 5280 psi 2920 psi
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Unformatted text preview: y s x 5 6500 psi s y 5 1700 psi t xy 5 2750 psi u 5 60 8 5 5280 psi 5 2 3450 psi s y 1 5 s x 1 s y 2 s x 1 5 2920 psi t x 1 y 1 5 2 s x 2 s y 2 sin 2 u 1 t xy cos 2 u s x 1 5 s x 1 s y 2 1 s x 2 s y 2 cos 2 u 1 t xy sin 2 u Problem 7.2-2 Solve the preceding problem for s x 5 80 MPa, s y 5 52 MPa, t xy 5 48 MPa, and u 5 25 (see figure). 52 MPa 48 MPa 80 MPa A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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