Preparation

• Read section 3-5
• Check on the Wikipedia page on Cauchy's Stress Tensor <https://en.wikipedia.org/wiki/Cauchy_stress_tensor#Principal_stresses_and_stress_invariants> _

Concepts

After this lesson you should be able to:

• Be able to find the resultant stress on any arbitrary plane
• Compute the principal stresses at a point

Upcoming Due Dates

• Five in-notebook detailed designs will be due Friday, October 9th in class
• Homework #2 will be due October 12th