Engineering Materials Material used by Engineers for their Products Types Metals Timber Reinforced Concrete Bituminous mixtures Clay products Masonry materials Plastics
Metals
Timber
Reinforced Concrete
Bituminous mixtures
Clay products
Masonry materials
Plastics
Principle Requirements Strength Adequately strong to carry the intended load Rigidity Adequately rigid not to deform under service loads Durability To perform function during service life
Properties of Engineering Materials Physical Properties: Shape Brightness Density Absorption Melting point Opacity Viscosity Conductivity Size or dimensions Colour Homogeneity
Properties of Engineering Materials Homogeneity Isotropic Anisotropic
Properties of Engineering Materials Chemical Properties Corrosion resistance Hygroscopy: PH Reactivity Surface tension
Properties of Engineering Materials Electrical Properties Conductivity Dielectric strength
Properties of Engineering Materials Optical properties Reflectivity Refractivity Scattering Photosensitivity Luminosity
Properties of Engineering Materials Manufacturing Properties Castability Extruding Hardness Machinability
Properties of Engineering Materials Mechanical Properties Strength Stiffness Elasticity Ductility Hardness