Chapter 6 – Mechanical Properties

Chapter 6 – Mechanical Properties - sheared...

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Chapter 6 – Mechanical Properties of Metals ~key mechanical design properties are stiffness, strength, hardness, ductility, and toughness 6.2 Concepts of Stress and Strain Tension Tests Engineering stress σ = F/A o (MPa) Engineering Strain ε = L/L o Plastic means permanent Initial -> small load – bonds stretch and planes shear -> Unload – planes still
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Unformatted text preview: sheared • Tensile Stress σ- perpendicular to the face (Force/Area) • Shear stress – parallel to the face • Strain is always dimensionless • Hooke’s Law - • Poisson’s Ratio...
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