Elastic Modulus
https://www.youtube.com/watch?v=Wp-OxdSDrkM&list=PL4Nzya2xrFzJYXMk3WzzUli70fjleYeDK

Elastic and Plastic Deformation, Yield Point, Stress - Strain diagram for aluminum, steel and galvanized steel
https://www.youtube.com/watch?v=Oz8fW68RY6I

Young's modulus and Hooke's Law
https://www.youtube.com/watch?v=KxxTTf7kUTM&list=PL4Nzya2xrFzJYXMk3WzzUli70fjleYeDK&index=2

Hooke's Law and Young's Modulus - A Level Physics
http://www.youtube.com/watch?v=qvcpeA5pBH0

MSE203 - Isotropic Elasticity
https://www.youtube.com/watch?v=KC_oHF02KsU

Stress and Strain Test @ Meritnation
http://www.youtube.com/watch?v=D23hzv-3Tf0

Stress Strain Graph Explained.
http://www.youtube.com/watch?v=55yQNjLLnWc

Physics - Mechanics: Stress and Strain (1 of 16) Basics
https://www.youtube.com/watch?v=IyvFpuFeDYc