Cross-Section B (T-Section)
The next cross-section to consider is a \"T-section\". The dimensions are given as:
b = 120 mm
d = 170 mm
t = 15 mm
With reference to the origin shown above, what is the vertical coordinate of the centroid for this cross-section:
$\bar{y}$ = mm
What is the second moment of area about the horizontal axis passing through the centroid:
$I_{xx}$ = $mm^4$
For a linear elastic material, the depth of the centroid is also the depth of the neutral axis.
What is the largest magnitude of stress due to bending acting on the cross-section (calculate stress at extreme points of cross-section - top and bottom fibres - and then give magnitude of largest stress):
$\sigma_{max}$ = MPa