Unit of study_

# MECH3362: Materials 2

## Overview

This unit aims for students to understand the relationship between properties of 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; polymers and polymer composite materials; ceramics and glasses; structure-property relationships; selection of materials in mechanical design.

### Unit details and rules

Unit code MECH3362 Aerospace, Mechanical and Mechatronic 6 None AMME2301 and (AMME2302 or AMME1362 or CIVL2110 or CIVL1110) None (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 Yes

### Teaching staff

Coordinator Li Chang, li.chang@sydney.edu.au Ziyan Man Li Chang Hang Dong Yutaka Tsumura

## Assessment

Type Description Weight Due Length
Final exam (Open book) Final exam
Type C, Canvas quiz (> 50% hand-written working analysis questions)
42% Formal exam period 2 hours
Outcomes assessed:
Online task Canvas Quiz
Canvas Quiz
5% Multiple weeks n/a
Outcomes assessed:
Assignment Lab report
Students prepare the report to analyze the lab results independently
8% Multiple weeks n/a
Outcomes assessed:
Assignment Assignment 1
take-home, worked answer problems
5% Week 03 n/a
Outcomes assessed:
Assignment Assignment 2
take-home, worked answer problems
5% Week 05 n/a
Outcomes assessed:
Tutorial quiz Quiz 1
Canvas Quiz, including multiple choice, hand written analysis work question
10% Week 07 1 hour
Outcomes assessed:
Assignment Assignment 3
take-home, worked answer problems
5% Week 07 n/a
Outcomes assessed:
Assignment Assignment 4
take-home, worked answer problems
5% Week 11 n/a
Outcomes assessed:
Tutorial quiz Quiz 2
Canvas Quiz, including multiple choice, hand written analysis work question
10% Week 13 1 hour
Outcomes assessed:
Assignment Assignment 5
take-home, worked answer problems
5% Week 13 n/a
Outcomes assessed:
= Type C final exam

### Assessment summary

• Lab report: Students are required to attend a lab session and submit a written report.
• Assignment 1: Students will be required to submit an assignment in response to practical problems on basic mechanical behaviour of engineering materials.
• Assignment 2: Students will be required to demonstrate their knowledge of failure analyses using failure and fracture criteria.
• Assignment 3: Students will be required to demonstrate their knowledge on the fracture and fatigue analyses of engineering materials.
• Assignment 4: Students will be required to demonstrate exercises and the establishment of sound knowledge in fatigue, fatigue crack growth and creep analyses for engineering materials.
• Final exam: Closed book examination.

Detailed information for each assessment can be found on Canvas.

### Assessment criteria

The University awards common result grades, set out in the Coursework Policy 2014 (Schedule 1).

As a general guide, a high distinction indicates work of an exceptional standard, a distinction a very high standard, a credit a good standard, and a pass an acceptable standard.

Result name

Mark range

Description

High distinction

85 - 100

Awarded when students demonstrate the learning outcomes for the unit at an exceptional standard.

Distinction

75 - 84

Awarded when students demonstrate the learning outcomes for the unit at a very high standard.

Credit

65 - 74

Awarded when students demonstrate the learning outcomes for the unit at a high standard.

Pass

50 - 64

Awarded when students demonstrate the learning outcomes for the unit at an acceptable standard.

Fail

0 - 49

When you don’t meet the learning outcomes of the unit to a satisfactory standard.

### Late submission

In accordance with University policy, these penalties apply when written work is submitted after 11:59pm on the due date:

• Deduction of 5% of the maximum mark for each calendar day after the due date.
• After ten calendar days late, a mark of zero will be awarded.

This unit has an exception to the standard University policy or supplementary information has been provided by the unit coordinator. This information is displayed below:

The Assessment Procedures 2011 provide that any written work submitted after 11:59pm on the due date will be penalised by 5% of the maximum awardable mark for each calendar day after the due date. If the assessment is submitted more than ten calendar days late, a mark of zero will be awarded.

The Current Student website  provides information on academic integrity and the resources available to all students. The University expects students and staff to act ethically and honestly and will treat all allegations of academic integrity breaches seriously.

We use similarity detection software to detect potential instances of plagiarism or other forms of academic integrity breach. If such matches indicate evidence of plagiarism or other forms of academic integrity breaches, your teacher is required to report your work for further investigation.

You may only use artificial intelligence and writing assistance tools in assessment tasks if you are permitted to by your unit coordinator, and if you do use them, you must also acknowledge this in your work, either in a footnote or an acknowledgement section.

Studiosity is permitted for postgraduate units unless otherwise indicated by the unit coordinator. The use of this service must be acknowledged in your submission.

## Learning support

### Simple extensions

If you encounter a problem submitting your work on time, you may be able to apply for an extension of five calendar days through a simple extension.  The application process will be different depending on the type of assessment and extensions cannot be granted for some assessment types like exams.

### Special consideration

If exceptional circumstances mean you can’t complete an assessment, you need consideration for a longer period of time, or if you have essential commitments which impact your performance in an assessment, you may be eligible for special consideration or special arrangements.

Special consideration applications will not be affected by a simple extension application.

### Using AI responsibly

Co-created with students, AI in Education includes lots of helpful examples of how students use generative AI tools to support their learning. It explains how generative AI works, the different tools available and how to use them responsibly and productively.

## Weekly schedule

WK Topic Learning activity Learning outcomes
Multiple weeks Reading literature and practice assessment questions Independent study (80 hr)
Week 01 Introduction; Engineering materials and their properties Lecture and tutorial (5 hr)
Week 02 Materials Selection for Engineering Applications Lecture and tutorial (5 hr)
Week 03 Brittle fracture and fracture toughness Lecture and tutorial (5 hr)
Week 04 Mechanisms of fracture & Case studies Lecture and tutorial (5 hr)
Week 05 Fatigue failure Lecture and tutorial (5 hr)
Week 06 Fatigue design & Life estimation on crack growth Lecture and tutorial (5 hr)
Week 07 Viscoelasticity & Creep failure Lecture and tutorial (5 hr)
Week 08 Processing Metals: Phase Diagram & Kinetics Lecture and tutorial (5 hr)
Week 09 Light Alloy & Case Studies Lecture and tutorial (5 hr)
Week 10 Ceramics: Structure, Properties & Processing Methods Lecture and tutorial (5 hr)
Week 11 Polymers and Composites Lecture and tutorial (5 hr)
Week 12 Engineering Materials for Advanced Manufacturing Lecture and tutorial (5 hr)
Week 13 Materials & Sustainable Development Lecture and tutorial (5 hr)

### Study commitment

Typically, there is a minimum expectation of 1.5-2 hours of student effort per week per credit point for units of study offered over a full semester. For a 6 credit point unit, this equates to roughly 120-150 hours of student effort in total.

All readings for this unit can be accessed through the Library eReserve, available on Canvas.

• M. F. Ashby & D. R. H. Jones, Engineering Materials 1: An Introduction to Properties, Applications and Design (4th).

## Learning outcomes

Learning outcomes are what students know, understand and are able to do on completion of a unit of study. They are aligned with the University's graduate qualities and are assessed as part of the curriculum.

At the completion of this unit, you should be able to:

• LO1. graph simple equations representing material props, interpret graphs and communicate the outcomes
• LO2. 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
• LO3. design a simple engineering structure by applying both criteria against plastic yielding and brittle fracture
• LO4. evaluate fatigue failure in terms fatigue plot, and crack growth based on a fracture mechanics approach (stress intensity factor range)
• LO5. analyse rupture life of stead-state creep as a function of stress and temperature
• LO6. understand the processing, structure and property relationships of advanced engineering materials such as composite materials and high performance alloys
• LO7. understand the general relationship between materials microstructure and mechanical properties (e.g. modulus of elasticity, yield strength, fracture toughness, fatigue, creep resistance, friction and wear)
• LO8. characterise mechanical behaviours of materials including basic mechanical property, fracture, fatigue and creep resistance.

The graduate qualities are the qualities and skills that all University of Sydney graduates must demonstrate on successful completion of an award course. As a future Sydney graduate, the set of qualities have been designed to equip you for the contemporary world.

 GQ1 Depth of disciplinary expertise Deep disciplinary expertise is the ability to integrate and rigorously apply knowledge, understanding and skills of a recognised discipline defined by scholarly activity, as well as familiarity with evolving practice of the discipline. GQ2 Critical thinking and problem solving Critical thinking and problem solving are the questioning of ideas, evidence and assumptions in order to propose and evaluate hypotheses or alternative arguments before formulating a conclusion or a solution to an identified problem. GQ3 Oral and written communication Effective communication, in both oral and written form, is the clear exchange of meaning in a manner that is appropriate to audience and context. GQ4 Information and digital literacy Information and digital literacy is the ability to locate, interpret, evaluate, manage, adapt, integrate, create and convey information using appropriate resources, tools and strategies. GQ5 Inventiveness Generating novel ideas and solutions. GQ6 Cultural competence Cultural Competence is the ability to actively, ethically, respectfully, and successfully engage across and between cultures. In the Australian context, this includes and celebrates Aboriginal and Torres Strait Islander cultures, knowledge systems, and a mature understanding of contemporary issues. GQ7 Interdisciplinary effectiveness Interdisciplinary effectiveness is the integration and synthesis of multiple viewpoints and practices, working effectively across disciplinary boundaries. GQ8 Integrated professional, ethical, and personal identity An integrated professional, ethical and personal identity is understanding the interaction between one’s personal and professional selves in an ethical context. GQ9 Influence Engaging others in a process, idea or vision.

### Outcome map

Learning outcomes Graduate qualities
GQ1 GQ2 GQ3 GQ4 GQ5 GQ6 GQ7 GQ8 GQ9

## Responding to student feedback

This section outlines changes made to this unit following staff and student reviews.

According to students' feedback in last year, more online learning materials will be provided.

### Disclaimer

The University reserves the right to amend units of study or no longer offer certain units, including where there are low enrolment numbers.

To help you understand common terms that we use at the University, we offer an online glossary.