1. Mechanical Properties of Materials
Constraints
Mechanical Properties
Materials and their Properties

2. Constraints Stress exerted on a material by a force Tension = Stretch
Compression = Crush
Torsion = Twist
Bending=bend
Shearing= to tear/cut

3. Mechanical Properties
How a material reacts when a constraint is applied to it

4. 1. Hardness Material does not break even if the pressure is great
Ex: Granite counters

5. 2. Ductility
Material stretches when pulled apart
Ex: Copper wires

6. 3. Elasticity
Material goes back to original shape after constraint is applied
Ex: Latex gloves

7. 4. Malleability Material changes shape without breaking
Ex: Gold jewellery

8. 5. Corrosion Resistant
Withstands degradation of the material by the environment
Ex: Special coatings on metals