- #1

zaurus

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## Homework Statement

I have attached a figure showing beam bending around 2 axis. I need to calculate section modulus Sx and Sy but seem to be getting the major and minor axis confused. I guess the problem comes in when I go to select which term is squared in my equation below.

## Homework Equations

S = 1/6 * b * h^2 for rectangular cross section

## The Attempt at a Solution

Sx = (70*750^2)/6 = 6.56E+6

Sy = (750*70^2)/6 = 6.13E+5

If this is correct, could you please help clarify why b and h are what they are in the section modulus equation for 1) major axis and 2) minor axis.

Thanks.

#### Attachments

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