Pre-requisites	Passed at least 3 modules from CM1101, CM1111, CM1121, CM1131 or passed at least 3 modules from PC1101, PC1102, PC1103, PC1205
Workload	25 lecture hours + 6 tutorials + 10 hours of laboratory + 5 hours of homework/assignment
Course Lecturers	Dr Chiu Cheng-Hsin     Tel: 6874-4832    S7 #03-04

1. Introduction to mechanical properties of metals, ceramics and polymers, including elasticity, yield, fracture, creep, and wear.
2. Relate these mechanical properties to atomic structure, microstructure, defects and other microscopic phenomena.
3. Describe the range of materials available for selection in various applications.
4. Explain the main features of the mechanical properties and use semi-empirical laws to predict behaviour in controlled conditions.
5. Show how the materials can be engineered and optimized for specific applications for example by appropriate thermal or mechanical treatment, and by forming composites etc.

• Elastic Moduli
• Stress and strain, Hooke's law, measurement of Young' Modulus
• Types of atomic bonds that hold materials together, whether stiff or floppy
• Packing of atoms in solids such as in crystal structures, polymers, ceramics and glasses. Miller and direction indices.
• Physical Basis of Young's modulus, including stiffness resulting from atomic packing, the glass transition temperature in rubbers, composites.
• Yield strength, tensile strength, hardness and ductility
• Stress-strain curves
• Ideal strength and plastic flow by the motion of screw and edge dislocations.
• Solid solution hardening, precipitate and dispersion strengthening, work hardening, yield in polycrystalline material.
• Continuum aspects of plastic flow including shear yield strength, plastic instability and the formability of metals and polymers
• Fast fracture, toughness and fatigue
• The energy condition for fast fracture
• Ductile tearing and cleavage
• Fatigue testing, crack growth rates in pre-cracked materials, mechanisms of fatigue
• Creep deformation and fracture
• High temperature behaviour of materials, creep testing and creep curves, including diffusion
• Dislocation creep and diffusion creep 
• Friction, abrasion and wear
• The laws of friction explained by the asperity contact model
• lubrication and abrasion, adhesive and abrasive

    1.  Materials Science and Engineering, W. D. Callister, John Wiley & Sons, 2000.

1. Mechanical Behavior of Materials, T.H. Courtney, McGraw-Hill, 2000.
2. Engineering Materials 1, M.F.Ashby and D.R.H.Jones, Butterworth-Heinemann, 1996.

After careful study of this module you should be able to:

1. Understand the chemical and physical foundations that govern the strength of materials.
2. Understand how mechanical properties often determine the selection of materials for certain applications.
3. Enhance properties of common materials by processing.
4. Predict how materials will behave under given constraints.
5. Select materials for optimization in engineering applications.