Mechanics & Materials

This subject has the following teaching availabilities in 2016:

170 hours

Postgraduate students:

• Enrolment in the MC-ENG Master of Engineering (Mechanical), (Mechanical with Business) or (Mechatronics)

Undergraduate students:

It is recommended that the following subjects have been completed (or equivalent):

For the purposes of considering request for Reasonable Adjustments under the Disability Standards for Education (Cwth 2005), and Student Support and Engagement Policy, academic requirements for this subject are articulated in the Subject Overview, Learning Outcomes, Assessment and Generic Skills sections of this entry.

It is University policy to take all reasonable steps to minimise the impact of disability upon academic study, and reasonable adjustments will be made to enhance a student's participation in the University's programs. Students who feel their disability may impact on meeting the requirements of this subject are encouraged to discuss this matter with a Faculty Student Adviser and Student Equity and Disability Support: http://services.unimelb.edu.au/disability

AIMS

This subject consists of three distinct and fundamentally related topics -

• An introduction to the fundamentals of materials science will be given on atomic structure and bonding, crystal structures and defects, elastic and plastic deformation, dislocations and strengthening and failured (fast fracture, fatigue and creep)

• The mechanics of materials section will extend the concepts of material mechanical behaviour by detailing elastic/inelastic behaviour and introducing the concepts of stress and strain analysis. Topics covered may include the definition of principal stresses, plane stress, plane strain, two-dimensional stress and strain analysis, torsion, pure bending, transverse loading, Mohr’s circle, failure criteria, inelastic behaviour, residual stress

• This subject will also provide an introduction to finite element analysis (FEA) and its application for stress-strain analysis. Particular emphasis will be placed on the fundamental mechanisms by which materials fail under loading.

INDICATIVE CONTENT

• Mechanics: the definition of principal stresses, plane stress, plane strain, two-dimensional stress and strain analysis, torsion, pure bending, transverse loading, Mohr’s circle, failure criteria, inelastic behaviour, residual stress.
• Materials: atomic structure and bonding, crystal structures and defects, elastic and plastic deformation, dislocations and strengthening and failure (fast fracture, fatigue and creep).
• Finite element analysis (FEA): FEA procedure, application of FEA to discrete systems and continuous bodies.

INTENDED LEARNING OUTCOMES (ILOs)

Having completed this subject the student is expected to be able to:

1. Perform basic stress and strain analysis
2. Analyse mechanical behaviour of materials
3. Obtain simple mathematical and physical relationships between mechanics and materials
4. Describe various testing techniques for characterisation of mechanical behaviour of materials
5. Use the finite element method for performing a computer-based stress and strain analysis.

• One three-hour end of semester written examination (60%), assesses Intended Learning Outcomes (ILOs) 1 to 4.
• Attendance and participation in materials labs and submission of written assignments (15% total), weeks 3 and 5. ILOs 1 and 2 are addressed with the lab sessions.
• Attendance and participation in Finite Element Analysis (FEA) workshops, and one written assignment approximately 15 pages (20%). ILO 5 is addressed with these workshops sessions.
• One in class written test (FEA) (5%).

Callister WD Jr, Materials Science and Engineering.

This subject potentially can be taken as a breadth subject component for the following courses:

• Bachelor of Arts
• Bachelor of Commerce
• Bachelor of Music

You should visit learn more about breadth subjects and read the breadth requirements for your degree, and should discuss your choice with your student adviser, before deciding on your subjects.

On completion of this subject, students should have developed the following generic skills -
• Ability to apply knowledge of science and engineering fundamentals
• Ability to undertake problem identification, formulation, and solution
• Ability to utilise a systems approach to complex problems and to design and operational performance
• Ability to communicate effectively, with the engineering team and with the community at large

LEARNING AND TEACHING METHODS

The subject is delivered through a combination of lectures, tutorials and laboratories. For e-learning, the lectures are recorded and made available to students through the University's online learning system.

INDICATIVE KEY LEARNING RESOURCES

A.P. Boresi and R. J. Schmidt, Advanced Mechanics of Materials.

W. D. Callister, Jr., Materials Science and Engineering - an Introduction.

Lecture Notes on LMS.