1. EML 2023 – Stress Analysis
Lecture 1 – Stress State

2. Static Stress Analysis
The material we will cover in this topic will be studied in detail in the courses:
EGM 3520, Mechanics of Materials
EML 4500, Finite Element Analysis and Design

5. Stress and Strain

6. Loading conditions
axial loading
bending
torsion

7. Stress state the stress state at any point can be
described by 6 values: three normal stresses and three shear stresses
an orientation can be found such that
there are no shear stresses
the normal stresses are called the
principal stresses

8. von Mises stress
Von Mises defined a single value for the stress state at a point based on the six stress values
in terms of the principal stresses

9. von Mises stress design objective
at every point, keep the von Mises stress below the yield stress of the material