This movie is organized in 12 scenes followed by
a Concept Checkpoints exercise.

• Scene 1:Introduction.
• Scene 2:Table of Contents.
• Scene 3:Discuss the Need to Calculate Stresses in Any Orientation.
• Scene 4:Define the Stress Element.
• Scene 5:Show Stresses on Stress Element.
• Scene 6:Naming Conventions for Element Faces.
• Scene 7:General Sign Conventions.
• Scene 8:Sign Conventions for σ_x.
• Scene 9:Sign Conventions for σ_y.
• Scene 10:Sign Conventions for τ_xy.
• Scene 11:Sign Conventions for τ_yx.
• Scene 12:End of Movie.
• Scene 13:Concept Checkpoints.

To skip directly to a particular scene, select it from drop down menu above.