Meddling with matter

Module Overview

Learning Outcomes

1. Identify on the stress-strain curve for a typical metal the following points or regions: proportional limit, yield strength, ultimate tensile strength, fracture strength, linear elastic region, non-linear elastic region, uniform elastic deformation, uniform plastic deformation, non-uniform plastic deformation, onset of necking, ductility, toughness, and modulus of resilience
2. Compute the true stress and true strain 
3. Compare and contrast the engineering stress and strain with the true stress and strain
4. Derive equations for the true stress and true strain based on the assumption of constant volume
5. Demonstrate how plastic deformation in metals occurs through the movement of linear crystalline defects
6. Organize crystalline defects according to their dimensionality, that is, zero-dimensional, one-dimensional, two-dimensional, and three-dimensional
7. Summarize the four major strengthening mechanisms in metals