5_ch 09 Mechanical Design budynas_SM_ch09

5_ch 09 Mechanical Design budynas_SM_ch09 -...

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Chapter 9 243 fom ± = I u lh = 1 [2(2 a )] h ± a 2 6 ² (3 a + a ) = 1 6 ± a 2 h ² = 0 . 1667 ± a 2 h ² 2 ¯ x = b 2 = a 2 , ¯ y = d 2 b + 2 d = a 2 3 a = a 3 I u = 2 d 3 3 2 d 2 ± a 3 ² + ( b + 2 d ) ± a 2 9 ² = 2 a 3 3 2 a 3 3 + 3 a ± a 2 9 ² = a 3 3 fom ± = I u = a 3 / 3 3 ah = 1 9 ± a 2 h ² = 0 . 1111 ± a 2 h ² 4 I u = π r 3 = π a 3 8 fom ± = I u = π a 3 / 8 π = a 2 8 h = 0 . 125 ± a 2 h ² 3 The CEE-section pattern was not ranked because the deflection of the beam is out-of-plane. If you have a square area in which to place a fillet weldment pattern under bending, your objective is to place as much material as possible away from the x -axis. If your area is rec- tangular, your goal is the same, but the rankings may change. 9-11 Materials: Attachment (1018 HR) S y = 32 kpsi, S ut = 58 kpsi Member (A36) S y = 36 kpsi, S ranges from 58 to 80 kpsi, use 58. The member and attachment are weak compared to the E60XX electrode.
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This note was uploaded on 12/13/2011 for the course EML 3013 taught by Professor Shingley during the Fall '11 term at UNF.

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