**Structures under
Combined Loading**

bending
stress by superposition to determine the total stresses developed in the
structure.
that
undergo normal and shear stresses acting on the faces of the element. Then use Mohr’s Circle to find the
principal stresses at the location of the element. Start
with a Free Body Diagram of the structure at the location where you want to
find the stresses. Calculate the forces and moments at that
section. Then use them to calculate the stresses associated with each
individual load such as σ = Mc/I
for bending stress, σ = P/a for axial stress, τ = Tc/J for torsional stress, and τ
= VQ/It for shearing stress. Note that
the total
normal stress at the section typically combines both bending stress and axial
stress. The
same is true for combining shear stresses due to torsion and transverse
shear. |

Return to Notes on Solid Mechanics |
---|

Copyright © 2019 Richard C. Coddington

All rights reserved.