Talk:Stress–strain curve/to do


 * ✔️ Usually there is a change in slope when passing from Elastic to Plastic region, and this is the sign that we passed the Elastic region. (Please correct)
 * Add different measurements of stress strain
 * Precise definitions needed, such as:
 * elastic limit,
 * proportional limit,
 * yield,
 * luders strains,
 * uniform elongation,
 * necking
 * Considere's criterion for instability?
 * ✔️ Better links between Yield (engineering), Stress (physics), Tensile stress, etc
 * Expand brittle materials section
 * yield curves of polymers and elastomers
 * brittle/ductile transitions? Maybe not
 * Non tension - torsion, bending, etc?
 * Need some references (see Materials by Callister)
 * ✔️ Where is the "figure 2" spoken of in the text?