Stress and Strain

Video of Steel tensile test: http://www.youtube.com/watch?v=67fSwIjYJ-E

Video of structural steel tensile test (necking and failure at ~2 minutes in): http://www.youtube.com/watch?v=5QaqwmZ7Sic

Longer video, with explanation and stress-strain graph during test: http://www.youtube.com/watch?v=D8U4G5kcpcM (focus on 2 minute - 4 minute, skip math, then check out comparison at 5:10 ish mark.)

SAFER barrier bending without failure: (McDowell) http://www.youtube.com/watch?v=kSGixbLi_c0 (Dodge test) http://www.youtube.com/watch?v=KxattLEYmpo

Steel beam buckling failure: http://www.youtube.com/watch?v=2jP0ek1nmG0

First of a series of lectures from West Point regarding structures: http://www.youtube.com/watch?v=duOotALbDM0

Trusses lecture: http://www.youtube.com/watch?v=ZTqO_TC_KUE