638_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

Tx y y o x probs 77 13 and 77 14 solution 77 13

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Unformatted text preview: y y O x Probs. 7.7-13 and 7.7-14 Solution 7.7-13 Element in plane strain 8400 psi sy 1100 psi txy 1700 psi E 10,000 ksi 0.33 âx + ây â1,2 ; 2 HOOKE’S LAW (EQS. 7-34 AND 7-35) 1 (s Ex sy) ây 1 (s Ey sx) FOR u âx1 387.2 * 10 txy 2txy(1 + ) G E âx + ây + 2 â1 6 426 * 10 452.2 * 10 6 2up ; 671 * 10 6 â2 gxy tan 2up ây âx 2 cos 2u + sin 2u + 868 * 10 gxy âx gxy 2 b 2 6 961 * 10 6 0.3579 ây 19.7° and 199.7° up 9.8° and 99.8° 2 2 cos 2u sin 2u âx1 9.8°: âx + ây 267 * 10 6 ây âx + 2 ‹ u p1 up2 6 âx1 FOR up 916 * 10 6 âx + ây gxy 6 434 * 10 ây1 ây âx 2 2 gx1y1 6 2 2 b +a 30°: 756 * 10 gx1y1 876.3 * 10 ây âx a 6 245 * 10 âx gxy A PRINCIPAL STRAINS sx 99.8° â1 9.8° â2 2 cos 2u + gxy 2 6 426 * 10 916 * 10 6 6 ; ; sin 2u sx...
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This note was uploaded on 12/22/2011 for the course MEEG 310 taught by Professor Staff during the Fall '11 term at University of Delaware.

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