Engineering Fundamentals: An Introduction to Engineering, 4th ed.c

188 Chapter 7 Length and Length-Related Parameters

Rectangle

(7.11)

Circle

(7.12)

The values of the second moment of area for standard wide-flange beams are shown in Table 7.8.

IxxIyy

1

4

pR

4

Iyy

1

12

hw

3

Ixx

1

12

wh

3

TABLE 7.8 Examples of the Second Moment of Area of Standard Beams

(SI Version)

Designation

Depth (mm) Width (mm) Area (mm

2

) Ixx(mm

4

) Iyy(mm

4

)

W460  113 463 280 14,400 554  10

6

63.3  10

6

W410  85 417 181 10,800 316  10

6

17.9  10

6

W360  57 358 172 7,230 160  10

6

11.1  10

6

W200 46.1 203 203 5,890 45.8  10

6

15.4  10

6

y

y

x x

Continued

h

w

x x

y

y

x x

y

y

R

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