PROBLEM STATEMENT

Hints and Discussion Thread

1. • σ_ave and R represent the location of the center and the radius of Mohr’s circle in the σ-τ plane. Use the equations provided in the lecture book for these two parameters.
   • Be as neat as possible in drawing your Mohr’s circle to make sure that your circle is round.
   • The x-axis on Mohr’s circle corresponds to (σ,τ) = (σ_x,τ_xy). Recall that the positive τ-axis points DOWNWARD.
   • What are the two  extreme values for normal stress in your Mohr’s circle? These are called the principal stresses.
   • What are the two extreme values for shear stress in your Mohr’s circle?

Any questions? Ask (and answer) questions here.