视频选集 01 An Introduction to Stress and Strain 02 Understanding True Stress and True Strain 03 Understanding Material Strength, Ductility and Toughness 04 Understanding the Area Moment of Inertia 05 Understanding Torsion 06 Understanding Plane Stress 07 Understanding Stress Transformation and Mohr's Circle 08 Understanding Stresses in Beams 09 Understanding the Deflection of Beams 10 Understanding Fatigue Failure and S-N Curves