University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2021
Views:

197

Pages:

1
Author:

Lily Callahan

COSMOS: Complete Online Solutions Manual Organization System Chapter 9, Solution 50. Data for C 250 × 30: A = 3780 mm 2 I x = 32.6 × 106 mm 4 I y = 1.14 × 106 mm 4 Dimensions in mm A = 2 3780 mm 2 + (10 mm )( 375 mm )  = 15.06 × 103 mm 2 Total Area, 3 2 1 I x = 2 32.6 × 106 mm 4  + 2  ( 375 mm )(10 mm ) + ( 375 mm )(10 mm )(132 mm )  12   = 65.2 × 106 mm 4 + 130.74 × 106 mm 4 = 195.94 × 106 mm 4 k x2 = I x 195.94 × 106 mm 4 = = 13.01 × 103 mm 2 3 2 A 15.06 × 10 mm or I x = 195.9 × 106 mm 4 or k x = 114.0 mm 2 3 1 I y = 2 1.14 × 106 mm 4 + 3780 mm 2 (115.3 mm )  + 2  (10 mm )( 375 mm )    12   ( ) = 102.783 × 106 mm 4 + 87.891 × 106 mm 4 = 190.674 × 106 mm 4 k y2 = Iy A = 190.674 × 106 mm 4 = 12.661 × 103 mm 2 15.06 × 103 mm 2 or I y = 190.7 × 106 mm 4 or k y = 112.5 mm

COSMOS Chapter 9 Solution 50

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