(Reference: Chapter 6, Callister)

The average (2.8) student will be able to:

1. define load, elongation, stress, strain, engineering stress, engineering strain, tensile stress, tensile strain, shear stress, shear strain.
2. describe the standard method for tensile/compressive stress-strain measurements.
3. recall the stress-strain statement of Hooke's law, defining all terms including associated units.
4. recall and use the relationship between shear stress and shear strain, defining all terms including associated units.
5. utilize Hooke's law to solve elastic deformation problems involving load, deformation, stress, strain, modulus of elasticity. Similarly, solve elastic problems involving pure shear stress and strain.
6. define elastic deformation, anelastic deformation and the difference between them.
7. define Poisson's ratio and state the relationship between shear modulus and elastic modulus involving Poisson's ratio.
8. sketch a typical stress-strain curve for a ductile labeling following features: proportional limit, 0.002 offset yield point, yield stress, tensile strength, fracture strength, fracture strain.
9. with reference to sketch in 7. show the condition of a typical specimen at yield, between yield and tensile strength, between tensile strength and fracture.
10. calculate ductility of a specimen from the stress-strain curve by the percent elongation definition of ductility.
11. given the necessary cross-sectional area data, calculate ductility on the basis of reduction of area.
12. define true stress and true strain with respect to the standard tensile test, in particular showing difference from engineering stress and engineering strain.
13. describe the phenomenon of elastic unloading as applied to a tensile specimen which has been loaded above the yield point and then unloaded.
14. describe, in general terms, the various hardness tests, including Brinell, Rockwell, Vickers, and Knoop.