Mechanical properties of materials

0:00 how to quantify grain size
3:20 introduction to mechanical properties
5:32 ASTM and standardized testing
7:53 different stresses on materials
9:55 dog bone testing
11:46 definitions of stress and strain
16:25 definition compression vs tension force sign and shear stress
17:10 normal stress and shear stress components at an arbitrary angle in material.
18:24 Hooke's law and elastic deformation
21:40 stress vs strain curve with different material classes
25:44 how to identify the onset of plasticity, yield stress
28:51 how elastic modulus relates to interatomic force plots
30:49 typical values of Young's modulus for different materials
31:43 shear modulus and anelasticity
34:43 Poisson's ratio and how this relates Young's and Shear modulus
36:50 yield point phenomena and Ultimate tensile strength
38:39 necking and work hardening
42:33 true stress and true strain
44:17 ductility
45:12 ductile vs brittle materials from stress vs strain curves (area under curve as fracture toughness), modulus of resilience