Plan for Wednesday, October 14, 2015

9:00

Review

  • 3D Mohr's circle
  • Normal and shear strain
  • Generalized Hooke's Law
  • Relationship between the three elastic constants
  • Basics of strain gauge rosettes

Questions?

Goals

  • Identify and compute stress concentrations
  • Compute stresses in curved beams

9:05

17/27 missed the direct shear in problem 1 and got the direction of the sigmas and taus mixed up.

Mohr's circle: \(2 \theta_p\)

9:10

Stress concentrations

9:20

Stress concentration example

9:25

Curved beams

9:35

Curved beam example

9:45