2_ch 02 Mechanical Design budynas_SM_ch02

2_ch 02 Mechanical Design budynas_SM_ch02 -...

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Chapter 2 7 2-7 The specific moduli are: UNS G10350 HR steel: E W = 30(10 6 ) 0 . 282 = 1 . 06(10 8 )in Ans. 2024 T4 aluminum: E W = 10 . 3(10 6 ) 0 . 098 = 1 . 05(10 8 Ans. Ti-6Al-4V titanium: E W = 16 . 5(10 6 ) 0 . 16 = 1 . 03(10 8 Ans. Gray cast iron: E W = 14 . 5(10 6 ) 0 . 26 = 5 . 58(10 7 Ans. 2-8 2 G (1 + ν ) = E ν = E 2 G 2 G From Table A-5 Steel: ν = 30 2(11 . 5) 2(11 . 5) = 0 . 304 Ans. Aluminum: ν = 10 . 4 2(3 . 90) 2(3 . 90) = 0 . 333 Ans. Beryllium copper: ν = 18 2(7) 2(7) = 0 . 286 Ans. Gray cast iron: ν = 14 . 5 2(6) 2(6) = 0 . 208 Ans. 2-9 0 10 0 0.002 0.1 0.004 0.2 0.006 0.3 0.008 0.4 0.010 0.5 0.012 0.6 0.014 0.7 0.016
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