Unformatted text preview: s y . (b) Determine the other principal stress and the orientation of the principal planes; then show the principal stresses on a sketch of a properly oriented element. Solution 7.3-20 Plane stress y x O 39.2 MPa s y 68.5 MPa } s x 5 2 68.5 MPa t xy 5 39.2 MPa s y 5 ? One principal stress 5 26.3 MPa (tension) (a) S TRESS s y Because s x is smaller than the given principal stress, we know that the given stress is the larger principal stress. s 1 5 26.3 MPa Substitute numerical values and solve for s y : s y 5 10.1 MPa s 1 5 s x 1 s y 2 1 B ¢ s x 2 s y 2 ≤ 2 1 t xy 2 A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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This note was uploaded on 09/20/2009 for the course COE 3001 taught by Professor Armanios during the Spring '08 term at Georgia Tech.
- Spring '08