Chapter 5 Stresses In Beams - ncyu.edu.tw
The applied loads (such as F 1,F 2 and F 3 in Fig.5.1) lie in the plane of the symmetry and are perpendicular to the axis of the beam (the x-axis).The axis of the beam bends but does not stretch ( the axis lies some where in the plane of symmetry; its location will be determined later).