Unit Outline:

[MECH3300]: [Materials II]

Unit of Study Description (from the Engineering Handbook)

4 credit points.

Semester: 2.

Classes: 2 lec/wk plus 1 tut/wk

Prerequisite: MECH 2300 Materials 1 and AERO 2300 Mechanics of Solids 1.

Assessment: One 2 hr closed book exam plus assignments as specified at the commencement of the semester.

Third year core unit of study for the degrees in Aeronautical and Mechanical Engineering.

Syllabus summary

Short-term and long-term mechanical properties, introductory fracture and fatigue mechanics, dislocations, polymers and polymer composite materials, ceramics and glasses, structure property relationships, selection of materials in mechanical design.

Objectives

(a) To understand the relationship between properties of materials and their microstructures; and

(b) To improve mechanical design based on knowledge of mechanics and properties of materials.

Expected outcomes

Students should gain the capabilities to select proper materials for simple engineering design.

Unit of Study Aims/Goals:

MECH3300 is your secondary course in materials engineering and technology. MECH3300 can be considered as a continued course of MECH2300. It extends the knowledge in structure-property relationship from metal alloys to ceramics, polymers and fibre reinforced composites. Meanwhile, from the theory and practical approaches developed in previous courses on materials and mechanics of solids (MECH2300, AERO2300 and MECH3310), this course extends the capability of understanding the processes of comprehensive failure diagnosis and damage tolerance design, focusing on creep, fatigue and crack propagation.

There are three key areas:

Understanding of mechanical behaviour of engineering materials (especially ceramics, polymers and fibre reinforced composites) in relation to the microstructures such as phrase geometry and volume fraction.
Capability to evaluate mechanical properties of engineering materials using the knowledge in solid mechanics and experimental techniques.
Understanding of deformation and failure mechanisms of engineering materials under different loading and environmental conditions as well as the concepts and principles of damage tolerance design.

In order to attain these key understandings the aims of this subject are to

Understand how to characterize mechanical behaviour of engineering materials using processing-structure-property relationship and to determine the mechanical properties of the materials especially ceramics, polymers and fibre composites
Understand ageing performance of engineering materials in terms of corrosion and UV-radiation etc.
Understand how to define yielding and brittle failure of materials at different stress states using different failure criteria
Understand how to diagnoses and evaluate fracture behaviour of engineering materials using fracture mechanics
Understand how to analyze and evaluate time-dependent rupture of materials such as creep and fatigue failure
Be able to design simple engineering structural elements such as beams and thin-walled structures against yielding, creep rupture and brittle fracture with the concept of damage tolerance

The University of Sydney has a set of generic attributes which it believes a graduate should attain upon completion of their degree. These attributes can be seen at http://www.usyd.edu.au/su/planning/policy/acad/102_grad.html. This subject will provide the following generic attributes

Knowledge Skills – all attributes in this section will be dealt with in this course.
Thinking Skills – all attributes in this section will be dealt with in this course.
Personal Skills – In particular the capacity for and a commitment to life-long learning
Personal Attributes – In particular the ability to value your own engineering judgments through diagnosis and failure analysis of engineering structures
Practical Skills – all attributes in this section will be dealt with in this course.

Student Learning Outcomes:

The outcomes of this subject are to:

Understand how to characterize mechanical behaviour of engineering ceramics in relation to crystal structure, microstructure and processing techniques
Understand how to characterize mechanical behaviour of engineering polymers in relation to molecular structure and processing techniques
Understand how to characterize and evaluate mechanical behaviour of fibre composites in relation to microstructures
Understand basic principles and approaches in selection of engineering materials
Understand how to define the yielding and brittle failure of materials at different stress states using different failure criteria
Understand how to diagnosis and evaluate fracture behaviour of engineering materials using fracture mechanics
Understand how to analyze and evaluate time-dependent rupture of engineering materials such as creep and fatigue failure
Ability to design simple engineering structural elements against yielding, creep rupture and brittle fracture with the concept of damage tolerance

Learning Commitments and Situations

There are two lectures per week where the theory, ideas, and engineering implementation to practical cases are discussed. The copies of lecture notes are available at the Copy Center of the university. The lectures are held in:

l PNR Lecture Theatre on Mondays at 9am

l PNR Lecture Theatre on Tuesdays at 12 noon

Tutorials are conducted once 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. Your tutorial time is allocated to you at the commencement of the semester. The tutorial times are as follows:

l Group 1 - ME Tutorial Room 1 on Fridays at 9 am

l Group 2 - ME Tutorial Room 2 on Fridays at 9 am

l Group 3 - ME Tutorial Room 1 on Fridays at 11am

l Group 4 - ME Tutorial Room 2 on Fridays at 11 am

You are expected to review the lectures and complete the pre-tutorial work before attending tutorials. This will ensure that you arrive at tutorials with the required knowledge to tackle the remaining components with the tutors.

Note: Tutors will not attend to your questions unless the pre-tutorial work is completed.

Learning Preparation:

This subject requires you to have two important skills to bring in:

A good understanding of basic knowledge and principles of material science and engineering from MECH2300 Materials I and mechanics of solids for simple structural elements (in tension, bending, torsion) from AERO2300.
Reasonable mathematical skills in calculation of stresses and strains in simple structural elements.

Assessment

Final examination: 50%

Assignments: 25%

In-class assessment (quizzes): 25%

There are totally three assignments in the semester, and each is completed using the individual efforts.

1. Assignment 1 consists of some basic and practical problems where you practise your knowledge in structure-property relationship of ceramics, polymers and fibre composites and characterization of mechanical response. The assignment should take less than 10 hours to be fully completed.

2. Assignment 2 is aimed to establish sound knowledge in failure and fatigue analysis using the knowledge in materials behaviour and mechanics of solids. The assignment should take less than 8 hours to be fully completed.

3. Assignment 3 focuses on the exercises and the establishment of comprehensive knowledge of damage tolerance design, brittle fracture analysis and diagnosis, design against brittle fracture and crack growth problems in some practical problems. The assignment should take less than 8 hours to be fully completed.

Further explanation of the various tasks will be provided to you on the assessment sheet.

Assessment – Timetable:

Component	Due Date	Weight
Assignment 1	Week 5	35%
Assignment 2	Week 9	30%
Assignment 3	Week 13	35%

Assessment – Grade Attributes:

The following grade descriptors describe what is required from you to achieve the following grade levels.

Grade Level	Descriptor
Pass	• Students who aim for a Pass should be able to – Identify the structure-property relationship of various engineering materials – Describe what material property parameters represent physically – Use simple equations for problem solving and enumeration – Be able to understand the basic facts and principles of materials sciences & engineering – Be able to interpret graphs
Credit	• Students who aim for a Credit will have to accomplish the requirements of a Pass and should be able to – Relate between the various components of the course and understand their interaction – Analyse and compare the various materials systems in order to provide valued engineering judgments towards which is the most appropriate for certain practical applications – Manipulate simple equations in order to evaluate different materials properties and be able to graph them accordingly in a clear and concise manner for communication purposes – Explain and understand the assumptions behind the derivation of the equations and the expected result if these assumptions are slackened.
Distinction & High Distinction	• Students who aim for a Distinction and higher will have to accomplish the requirements of a Credit and should be able to – Comprehensively understand mechanical properties of various engineering materials and their implication in design and failure diagnosis of engineering structures – Manipulate complex equations from basic principles and theories in materials science and mechanics of solids – Hypothesise over expected results and techniques in order to analyse different problems with different background – Synchronise different approaches in design and failure analysis and optimise selection of engineering materials for practical applications in different situation.

Unit of Study Program:

Week	Description of Topic	Assessment
1	Ceramics - Crystal Structure/Mechanical Properties	Assignment 1 Out
2	Ceramics – Processing, Polymers - Structure
3	Polymers - Mechanical Properties, Composites - Introduction
4	Continues Fibre Composites – 1, Continues Fibre Composites - 2
5	Short Fibre Composites, Corrosion and Degradation	Assignment 1 Due In, Assignment 2, Quiz 1
6	Materials Selection, Tough and Elastic-Plastic Materials
7	Viscoelasticity, Generalised Hooke's Law
8	Stress State, Failure Criteria
9	Fatigue, Design against Fatigue	Assignment 2 Due In, Assignment 3, Quiz 2
10	Linear Fracture Mechanics
11	Stress Intensity Factor, Fracture Characteristics,
12	Fatigue Crack Growth, Life Estimation
13	Creep Failure and Rupture, Recap of the Semester’s Work	Assignment 3 Due In Quiz 3

Unit of Study References

Lecture notes (available at the Copy Centre)

Comprehensive reading and tutorial/assignment:

Gallister, Jr.Materials Science and Engineering-An Introduction (John Wiley & Sons)

Dowling, Norman E Mechanical Behaviour of Materials

Additional References at Engineering Library

Ashby & Jones Engineering Materials 1 (Butterworth Heinemann)

Ashby & Jones Engineering Materials 2 (Butterworth Heinemann)

Ashby Materials Selection in Mechanical Design (Pergamon Press)

Further information such as electronic copies of lecture notes is posted on the School website.

Staff Contact Information

Position	Name	Email	Telephone	Room Number
Lecturer	Lin Ye	ye@aeromech.usyd.edu.au	9351 4798	Rm 522, Mechanical Engineering Building
Tutor	Tri Thanh Tram	tripham@prontomail.com
Tutor	Cheng Yan	ycheng@aeromech.usyd.edu.au	9351 7146	Rm 516, Mechanical Engineering Building

Tutorial Groups:

SID	FAMILY_NAME	GIVEN_NAMES
Group 1
200129684	ABRAHAMS	OMAR
200165768	AL KAMAND	RAMI
200118406	AMERY	SIMON ROBERT
200113883	BAYLEY	JESSICA
200010065	BERNARD	SIMON
200104179	BIANCO	CLAIRE ROSE
200129788	BONG	JAYA SUTOYO
200106166	BRIGNELL	JARED DANE
200120190	BRYANT	JOSEPH STUART
200145100	CHEN	CHI CHEUNG
200200825	CHIAM	TAT XIN
200123598	CHUNG	JENNIFER YI WEN
200015401	CLEMENTS	RICHARD JAMES
200113174	CURRAN	BENJAMIN MICHAEL
200126366	DAMP	LLOYD HOLLIS
200148461	DERWENT	LACHLAN JAMES
200122411	DOOLEY	CHRISTOPHER NIGEL
200123158	EDGLEY	JOSHUA DAVID
200012566	ELAZZI	RAMI
200317595	ELMAARRAOUI	ANNA
200111286	ERRINGTON	BELINDA RUTH
200200537	FOO	SIONG LIM
200001726	GIBBONS	SIAN LOUISE
200107923	GILLAM	NATALIE
Group 2
200148181	GREENUP	MATTHEW
200103950	GRIFFIN	ROBERT
200319470	HALL	ALEXANDER PHILIP KENDALL
200012417	HAMAD	JOSEPH
200110350	HAN	ERIC
199912337	HART	JAKE ROBERT
200118755	HUANG	JIA
200025710	HUMPHRIES	CHRISTOPHER EDWARD
200118486	HUTCHINSON	CARL THOMAS
200014398	JACKSON PROUD	JAMIE
200103339	JENKINS	LILLIAN
200117627	JIN	KIERAN KAI KAI
200129727	JUDDOO	MRINAL
200009193	KANG	THOMAS DONG JOON
200120710	KERR	NIGEL ALEXANDER MERTON
200112971	KING	CHRISTOPHER CHARLES
200146071	KONG	SUE ANNE
200103790	KOUREAS	CHRISTOPHER
200041788	KUMAR	GAURAV
200000432	LAM	SZE YEUNG
200114899	LAW	SHUI LUN ALAN
200121971	LEE	YUCHOONG BENJAMIN
200148168	LI	PATRICK KA CHUNG
200131156	LIEW	CHU KWANG KELVIN
Group 3
200246329	LIEW	KHOONG KIN ALVIN
200334620	LING	JACK CHAN LUNG
199712105	LOMBARDO	PETER JOHN
200028361	LUCAS	JORDAN EDMUND
199642989	LUM	WILLIAM
200142687	MA	WEN JIE
200102550	MAGRO	WILLIAM CHARLES
200120203	MARTIN	JOSHUA HARLEY
200147013	MCKEON	SCOTT
199933206	MISSIAKAS	GEORGIA
200145271	NAOUS	WALID
200127907	OH	RICHARD JIN WOOK
200140084	ONG	KUAN HIONG NICHOLAS
200250655	PARAMALINGAM	EESWARI
200012425	PARK	ZANO JONG KUK
200151050	PARKER	ANDREW CRAIG
200116446	PETTIT	JOHN
200130039	PICKLES	ALISTAIRE JAMES RICHARD
200118830	PITCHER	JAMIE ANDREW TRAFFORD
200118507	PLAIN	KRISTOPHER PETER
200107854	POTENTE	DANIEL DOMINIC
200116134	POWELL	CHRISTOPHER EDWARD
200110206	RIVERS	MICHAEL JAMES
199933113	ROSE	PAUL NORMAN
199916950	SANTOS	LUIS FERREIRA
Group 4
199915366	SCHENKER	TOBIAS MURRAY
200112475	SHEEKEY	MICHELLE MARIRENE
200233036	SINGH	MALWINDER
199819038	SOO	DANIEL ADAM
200117923	STEWART	DAVID JOEL
199936590	STEWART	SAMUEL PAUL RANKIN
200105766	TAM	WAI MAN
200142940	TAMER	DANIEL
200202265	TAN	SOON HOE
200119115	TANG	WING YIN
200246623	TEE	EU TEIK
200161087	TEK	BRANDON WEI CHIEN
200202724	TUAN	MING HUAT ANDREW
200110715	TURNER	ANDREW
200002078	TYSON	MARK ALLAN MORRIS
200116806	URQUHART	HAMISH
200126694	VILLIGER	PETER JOHN
200115587	VONK	ROBIN
200126750	WEBB	JONATHON CHRISTOPHER
200118414	WILCOX	EVAN MATTHEW
200051579	WONG	MAXIMILIAN
200130223	YONG	CHEN CHEONG
200127035	YOO	HYUN MOON DAVID

Week	Tutorial	Assignment I
2	13.16, 13.40	13.23, 13.42
3	14.7, 15.8	14.9, 15.7
4	15.27, 16.6, 17.12	15.28, 16.7, 17,13
5	17.17, 17.20, 17.D1	17.19, 17.28, 17.D4

Week	Tutorial	Assignment II
7	3.11, 3.13	3.12, 3.14
8	5.5, 5.17	5.7, 5.18
9	5.21, 6.15, 6.22	5.23, 6.8, 6.17,

Unit of Study Description (from the Engineering Handbook)

Learning Commitments and Situations

This subject requires you to have two important skills to bring in:

Component

Ceramics - Crystal Structure/Mechanical Properties

Materials Selection, Tough and Elastic-Plastic Materials

Creep Failure and Rupture, Recap of the Semester’s Work