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MECH8362: Materials 2 (2019 - Semester 1)

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Unit: MECH8362: Materials 2 (6 CP)
Mode: Normal-Day
On Offer: Yes
Level: Postgraduate
Faculty/School: School of Aerospace, Mechanical & Mechatronic Engineering
Unit Coordinator/s: Dr Chang, Li
Session options: Semester 1
Versions for this Unit:
Site(s) for this Unit: http://www.aeromech.usyd.edu.au/MECH3362
Campus: Camperdown/Darlington
Pre-Requisites: The equivalence of AMME9301 AND (AMME9302 OR CIVL9110)
Brief Handbook Description: This unit aims for students to understand the relationship between properties of engineering materials and their microstructures and to improve mechanical design based on knowledge of mechanics and properties of materials.

At the end of this unit students should have the capability to select proper materials for simple engineering design.

Course content will include: short-term and long-term mechanical properties; introductory fracture and fatigue mechanics, dislocations; oxidation and corrosion; friction and wear; Steel and non-ferrous alloys; structure-property relationships; selection of materials in mechanical design.
Assumed Knowledge: (1) A good understanding of basic knowledge and principles of material science and engineering from Materials I and mechanics of solids for simple structural elements (in tension, bending, torsion); (2) Reasonable mathematical skills in calculation of stresses and strains in simple structural elements.
Lecturer/s: Dr Chang, Li
Timetable: MECH8362 Timetable
Time Commitment:
# Activity Name Hours per Week Sessions per Week Weeks per Semester
1 Lecture 3.00 3 13
2 Tutorial 2.00 2 13
3 Laboratory 1
4 Independent Study 13
T&L Activities: Tutorial: Tutorials are conducted twice a week for individual students. Tutorials are aimed to give you more examples in relation to the knowledge and theories discussed during lectures and to help you to address the key knowledge required for tackling your assignments.

Laboratory: Each student is required attend only once during semester for a 3-hour lab class on Tuesday afternoon commencing in Week 3 in s152 ME Building on evaluating brittle fracture of glass plates using the concept of Linear Elastic Fracture Mechanics.

Attributes listed here represent the key course goals (see Course Map tab) designated for this unit. The list below describes how these attributes are developed through practice in the unit. See Learning Outcomes and Assessment tabs for details of how these attributes are assessed.

Attribute Development Method Attribute Developed
Understand mechanical properties of various engineering materials and their implication in design and failure diagnosis of engineering structures. (1) Maths/ Science Methods and Tools (Level 3)
Ability to synchronise different approaches in design and failure analysis and optimise selection of engineering materials for practical applications in different situation. (4) Design (Level 3)
Ability to relate between the various components of the course and understand their interaction.
Ability to graph simple equations representing material props in a clear and concise manner for communication purposes, and to interpret graphs used by others		 (6) Communication and Inquiry/ Research (Level 2)

For explanation of attributes and levels see Engineering & IT Graduate Outcomes Table 2018.

Learning outcomes are the key abilities and knowledge that will be assessed in this unit. They are listed according to the course goal supported by each. See Assessment Tab for details how each outcome is assessed.

(6) Communication and Inquiry/ Research (Level 2)
1. Ability to graph simple equations representing material props, interpret graphs and communicate the outcomes.
(4) Design (Level 3)
2. Ability to design simple engineering structural elements such as beams and thin-walled structures against plastic yielding, brittle failure, creep rupture and brittle fracture and fatigue with the concept of damage tolerance using the basic principles in materials selection.
3. Ability to design a simple engineering structure by applying both criteria against plastic yielding and brittle fracture.
(3) Problem Solving and Inventiveness (Level 3)
4. Ability to evaluate fatigue failure in terms fatigue plot (S-N curve) and crack growth based on a fracture mechanics approach (stress intensity factor range)
5. Ability to analyze rupture life of stead-state creep as a function of stress and temperature.
(2) Engineering/ IT Specialisation (Level 3)
6. Understand the processing – structure - property relationships of advanced engineering materials such composite materials and high performance alloys
7. Understanding of the general relationship between materials micostructue and mechanical properties (e.g. modulus of elasticity, yield strength, fracture toughness, fatigue, creep resistance, friction and wear).
(1) Maths/ Science Methods and Tools (Level 3)
8. Ability to characterize mechanical behavious of materials including basic mechanical property, fracture, fatigue and creep resistance.
Assessment Methods:
# Name Group Weight Due Week Outcomes
1 Lab Report No 5.00 Multiple Weeks 1, 2, 6, 7, 8,
2 Quiz No 10.00 Week 7 1, 2, 3, 6, 7, 8,
3 Quiz No 10.00 Week 13 1, 2, 3, 4, 5, 6, 7, 8,
4 Assignment 1 No 5.00 Week 3 1, 2, 3, 6, 7, 8,
5 Assignment 2 No 5.00 Week 6 1, 2, 3, 5, 6, 7, 8,
6 Assigment 3 No 5.00 Week 9 1, 2, 3, 4, 6, 7, 8,
7 Assignment 4 No 5.00 Week 13 1, 2, 4, 5, 6, 7, 8,
8 Final Exam No 55.00 Exam Period 2, 3, 4, 5, 6, 7, 8,
Assessment Description: Lab report: Each student is required to attend a lab session in one afternoon and submit a written report. The schedule of the lab sessions will be tabled in week 3.

Quizzes: An in-class quiz will be conducted in week 7 and week 13, respectively.

Assignment: There are totally four assignments in the semester, (1) Assignment 1 [25%] with some practical problems on basic mechanical behaviour of engineering materials. (2) Assignment 2 [25%] on knowledge of failure analyses using failure and fracture criteria. (3) Assignment 3 [25%] on fracture and fatigue analyses of engineering materials, and (4) Assignment 4 [25%] on the exercises and the establishment of sound knowledge in fatigue, fatigue crack growth and creep analyses for engineering materials.

Final Exam: 2hr, close book examination.
Grading:
Grade Type Description
Standards Based Assessment Final grades in this unit are awarded at levels of HD for High Distinction, DI (previously D) for Distinction, CR for Credit, PS (previously P) for Pass and FA (previously F) for Fail as defined by University of Sydney Assessment Policy. Details of the Assessment Policy are available on the Policies website at http://sydney.edu.au/policies . Standards for grades in individual assessment tasks and the summative method for obtaining a final mark in the unit will be set out in a marking guide supplied by the unit coordinator.
Special Conditions to Pass UoS No attendance in the tutorial and lab classes will result in a fail in this Unit of Study.
Policies & Procedures: See the policies page of the faculty website at http://sydney.edu.au/engineering/student-policies/ for information regarding university policies and local provisions and procedures within the Faculty of Engineering and Information Technologies.
Prescribed Text/s: Note: Students are expected to have a personal copy of all books listed.
Recommended Reference/s: Note: References are provided for guidance purposes only. Students are advised to consult these books in the university library. Purchase is not required.
Online Course Content: http://www.aeromech.usyd.edu.au/MECH3362
Note on Resources: Lecture notes are available at the Copy Centre (Shop 2 Ground Level, Sports and Aquatic Centre G09). Further information such as electronic copies of the updated lecture notes will be uploaded after lectures

Note that the "Weeks" referred to in this Schedule are those of the official university semester calendar https://web.timetable.usyd.edu.au/calendar.jsp

Week Description
Week 1 Introduction and Reviews on Solids 1
Engineering Materials and Material Selection (Chapters 1 & 2)
Week 2 The Elastic Moduli (Chapters 3 & 4)
Week 3 Composite Materials, Anisotropy of Elasticity (Chapter 6), Case Studies (Chapter 7)
Assessment Due: Assignment 1
Week 4 Yielding Strength, Tensile Strength and Ductility (Chapters 8-9)
Week 5 Strengthening Methods and Plasticity (Chapters 10-12)
Week 6 Brittle Fracture and Fracture Toughness (Chapter 13)
Assessment Due: Assignment 2
Week 7 Mechanisms of Fracture and Probabilistic Fracture (Chapters 14-15), Case Studies (Chapter 16)
Assessment Due: Quiz
Week 8 Fatigue Failure and Characteristics of Fatigue (Chapter 17)
Week 9 Fatigue Design and Fatigue Crack Growth (Chapter 18),Life Estimation on Crack Growth and Case Studies (Chapter 19)
Assessment Due: Assigment 3
Week 10 Steel Alloys
Week 11 Non-Ferrous Alloys
Week 12 Oxidation and Corrosion (Chapters 24 - 27)
Week 13 Friction, Abrasion and Wear (Chapters 28 & 29)
Assessment Due: Quiz
Assessment Due: Assignment 4
Exam Period Assessment Due: Final Exam

Course Relations

The following is a list of courses which have added this Unit to their structure.

Course Year(s) Offered
Master of Professional Engineering (Accelerated) (Biomedical) 2019, 2020
Master of Professional Engineering (Accelerated) (Mechanical) 2019, 2020

Course Goals

This unit contributes to the achievement of the following course goals:

Attribute Practiced Assessed
(5) Interdisciplinary, Inclusiveness, Influence (Level 3) No 0%
(6) Communication and Inquiry/ Research (Level 2) Yes 4.5%
(4) Design (Level 3) Yes 29%
(3) Problem Solving and Inventiveness (Level 3) No 23%
(2) Engineering/ IT Specialisation (Level 3) No 27.25%
(1) Maths/ Science Methods and Tools (Level 3) Yes 16.25%

These goals are selected from Engineering & IT Graduate Outcomes Table 2018 which defines overall goals for courses where this unit is primarily offered. See Engineering & IT Graduate Outcomes Table 2018 for details of the attributes and levels to be developed in the course as a whole. Percentage figures alongside each course goal provide a rough indication of their relative weighting in assessment for this unit. Note that not all goals are necessarily part of assessment. Some may be more about practice activity. See Learning outcomes for details of what is assessed in relation to each goal and Assessment for details of how the outcome is assessed. See Attributes for details of practice provided for each goal.