5_ch 01 Mechanical Design budynas_SM_ch01

5_ch 01 Mechanical Design budynas_SM_ch01 -...

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Unformatted text preview: budy_sm_ch01.qxd 11/21/2006 15:23 Page 5 Chapter 1 1-13 (a) τ = 120(103 ) = 382 MPa ( π/4)(202 ) 32(800)(800)(10−3 ) = 198.9(106 ) N/m2 = 198.9 MPa π (32) 3 (10−3 ) 3 π (364 − 264 ) = 3334 mm3 (c) Z = 32(36) (b) σ = (d) k = (1.6) 4 (10−3 ) 4 (79.3)(109 ) = 286.8 N/m 8(19.2) 3 (10−3 ) 3 (32) 5 ...
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