Mechanical Behavior of Materials

  1. Plastic Deformation
    1. The Tensile Test
      1. Test Procedure and Standards
        1. Stress-Strain Curve
          1. Elastic Region
            1. Yield Point
              1. Plastic Region
                1. Necking
                  1. Fracture
                  2. Yield Strength
                    1. Offset Method
                      1. True Yield Strength
                        1. Engineering Yield Strength
                        2. Ultimate Tensile Strength
                          1. Definition and Significance
                          2. Ductility
                            1. Percent Elongation
                              1. Reduction in Area
                              2. Resilience
                                1. Modulus of Resilience
                                2. Toughness
                                  1. Area under Stress-Strain Curve
                                3. Yield Criteria for Ductile Materials
                                  1. Tresca Criterion
                                    1. Mathematical Formulation
                                      1. Application to Stress States
                                      2. Von Mises Criterion
                                        1. Mathematical Formulation
                                          1. Application to Stress States
                                          2. Yield Surface
                                            1. Representation in Principal Stress Space
                                              1. Comparison of Criteria
                                            2. Strain Hardening
                                              1. Mechanisms of Strain Hardening
                                                1. Strain Hardening Exponent
                                                  1. Effects on Mechanical Properties
                                                  2. Plastic Instability in Tension
                                                    1. Considère Criterion
                                                      1. Onset of Necking
                                                        1. Post-Necking Behavior
                                                        2. Hardness and its Relation to Strength
                                                          1. Hardness Testing Methods
                                                            1. Correlation with Yield Strength
                                                              1. Correlation with Tensile Strength
                                                                1. Limitations of Hardness as a Strength Indicator

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                                                              2. Elastic Behavior

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                                                              4. Dislocation Theory and Strengthening Mechanisms