Review

• Triaxial state of stress: principal stresses/directions
• Biaxial state of stress: Mohr's circle

Goals

• Be able to recognize and interpret the 3D Mohr's circle.
• Define general strain
• Understand the relationship between stress and strain
• Understand strain gauge rosettes

Questions?

Wrap up

• Triaxial Mohr's Circle
• Hooke's Law (general form)
• Strain rosettes

Due Dates

• Homework #3 will be posted tody and due next monday
• Rough draft for Project 1 due Friday by sharing Google Doc
• Result from FEA assignment due electronically Friday