649_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

649_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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Unformatted text preview: 07Ch07.qxd 9/27/08 1:24 PM Page 643 643 SECTION 7.7 Plane Strain Problem 7.7-24 Solve Problem 7.7-6 by using Mohr’s circle for plane strain. Solution 7.7-24 Element in plane strain âx gxy 420 * 10 6 ây gxy 6 310 * 10 2 170 * 10 155 * 10 6 6 POINT C: âx1 u 37.5° POINT D (u 125 * 10 37.5°): âx1 125 * 10 6 + R cos b 351 * 10 gx1y1 R sin b 244.8 * 10 6 2 gx1y1 490 * 10 POINT D œ (u âx1 125 * 10 gx1y1 R sin b 2 gx1y1 R 2(295 * 10 333.24 * 10 a arctan 155 295 b 2u a 62 ) + (155 * 10 6 27.72° 47.28° 6 62 ) 6 6 127.5°): 6 490 * 10 R cos b 244.8 * 10 6 101 * 10 6 6 ...
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