EGH414 Stress Analysis and Numerical Modelling


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Unit Outline: Semester 1 2024, Gardens Point, Internal

Unit code:EGH414
Credit points:12
Pre-requisite:(EGB314 or ENB212) or Admission to (EN55 or EN60)
Equivalent:ENB311
Coordinator:Zhiyong Li | zhiyong.li@qut.edu.au
Disclaimer - Offer of some units is subject to viability, and information in these Unit Outlines is subject to change prior to commencement of the teaching period.

Overview

Mechanical/Medical engineers need to analyse components and systems to produce safe effective designs, innovate new products and improve existing devices. Towards a professional engineer, an understanding of how engineering components respond to loads to produce stress and strain, and the nature of the stresses and strains is required. This unit introduces computational methods to analyse, design and optimize more complex components and systems. You will work with peers to learn basic finite element method in solving stress and strain in simple engineering components in response to loadings. This unit builds on the intermediate Engineering Mechanics units, and aims to extend your knowledge on basic mechanics of materials to more advanced stress analysis methods. This unit also contains an embedded maths module to provide advanced level numerical analysis techniques to support student learning in advanced level engineering units. The mathematics constitutes 30% of this unit.

Learning Outcomes

On successful completion of this unit you will be able to:

  1. Apply the fundamental principles of the strength of materials, to engineering componentsand systems, at a mastered level.
  2. Solve problems in the strength of materials of engineering components and systems at amastered level.
  3. Communicate analysis procedures and methodologies in the strength of materials ofengineering components and systems, at a mastered level.
  4. Demonstrate knowledge of, and utilise, numerical modelling methods relevant toengineering at a developed level.

Content

Engineering
1. 3D Stress and strain analysis.
2. Stress-Strain Relations.
3. Problems of elasticity, approximation and effects of geometry.
4. Finite element analysis - principles and application.
5. Energy Methods.
6. Failure criteria.
7. Torsion of non-circular sections.
8. Axi-symmetrically loaded members.
9. Introduction to Plates and shells.

Numerical Modelling:
Review of partial derivatives, gaussian elimination, eigenvalues
Numerical differentiation, finite differences
Boundary value problems, Dirichlet and Neumann boundary conditions
Computational stencils
Dense and sparse matrix representations
Direct methods for sparse matrices
Iterative methods for sparse matrices
Discretisation in time, explicit and implicit methods, stability

Learning Approaches

In this unit you can expect to experience the following timetabled activities:

  • Lecture: Formal lectures from experienced professional engineers to give you insight into professional
    engineering knowledge, skills and attributes. The lectures will introduce you to the basic building blocks of
    knowledge required to perform stress analysis in basic engineering mechanics problems. Practical examples
    will be used to illustrate these principles.
  • Workshop: Tutorial exercises will give you practice at applying the knowledge and principles outlined in the
    lectures. Worked solutions will be made available progressively during the semester. A series of workshop
    sessions will allow you to develop an understanding of the theoretical concepts and apply these concepts in
    the solution to set problems in and out of class.
  • Maths module: You will have a 1-hour mathematics lecture and a 1-hour mathematics workshop each week
    dedicated to mathematical content. Mathematics workshops will be facilitated by instructors to provide guidance and feedback on your learning.

To complement timetabled activities, you will be provided with videos, readings, web site, tools that you can accessfl exibly to complete your learning in this unit.

You are expected to:

  • View all learning materials in a timely manner
  • Attend formal lectures and workshops and work on the tutorial questions
  • Engage with your peers, preferably face-to-face, to conduct your group assignment
  • Maintain notes and critical reflections on your group contributions to inform assessment

Feedback on Learning and Assessment

  • You will receive formative oral feedback on your progress throughout the semester during lectures and workshops.
  • Answers and solutions to workshop questions will be provided after the related workshop content.
  • You are encouraged to view your group as a learning community and to share and discuss emergent ideas in the design process.
  • Each assessment submission will be marked against criteria and standards which will be shared with you at the beginning of semester through Assessment Task Descriptions and Marking Rubrics. Marked assessment will include feedback from markers, against the criteria.

Assessment

Overview

As you progress through this unit you will move between learning underpinning mechanics theory and concepts and using that theory in practical applications. You will be developing your capability to solve problems by looking at physical systems and diagnosing the appropriate theory and methods to predict behavior of those systems, which is a key capability for professional engineering practice. The assessment for the unit is designed to assess your learning against the unit learning outcomes and includes individual problem solving tasks, a finite element modelling assignment and a written final examination, which will test your capability to diagnose and solve problems in engineering science. The mathematics assessment constitutes 30% of the total assessment in this unit.

Unit Grading Scheme

7- point scale

Assessment Tasks

Assessment: Problem Solving Task

A problem solving task assessing the content from the early part of the semester. Assessment of the mathematics content in this assessment will contribute 5% to your final result in this unit.

Weight: 20
Individual/Group: Individual
Due (indicative): Throughout semester
Related Unit learning outcomes: 1, 2, 4
Related Standards: EASTG1CMP: 1, 1.1, 1.2, 1.3, 2, 2.1, 2.2

Assessment: FEA Project (applied)

There will be two parts of FEA assignment, due at different times in the semester. Analysis and use of the ANSYS software package to solve a real world stress analysis problem. This assignment is set in a manner that promotes critical analytical skills. It tests your ability to break down a real world engineering problem into its analytical components and to apply the finite element method to construct and optimise a model. NOTE: The focus of the FEA assignment is on analysis and understanding, not design. Assessment of the mathematics content in this assessment will contribute 10% to your final result in this unit.

Weight: 30
Individual/Group: Group
Due (indicative): Weeks 9 & 13
Related Unit learning outcomes: 1, 2, 3
Related Standards: EASTG1CMP: 1, 1.1, 1.3, 1.4, 1.5, 2, 2.1, 2.2, 2.3, 3, 3.2

Assessment: Examination (written)

Written examination on stress analysis problems using the theoretical and numerical methods covered in the unit. Assessment of the mathematics content in this assessment will contribute 15% to your final result in this unit.
“If campus access is restricted at the time of the central examination period/due date, an alternative, which may be a timed online assessment, will be offered. Individual students whose circumstances prevent their attendance on campus will be provided with an alternative assessment approach.”

Weight: 50
Individual/Group: Individual
Due (indicative): Central Examination Period
Examination Period
Related Unit learning outcomes: 1, 2, 4
Related Standards: EASTG1CMP: 1, 1.1, 1.2, 1.3, 2, 2.1, 2.2

Academic Integrity

Students are expected to engage in learning and assessment at QUT with honesty, transparency and fairness. Maintaining academic integrity means upholding these principles and demonstrating valuable professional capabilities based on ethical foundations.

Failure to maintain academic integrity can take many forms. It includes cheating in examinations, plagiarism, self-plagiarism, collusion, and submitting an assessment item completed by another person (e.g. contract cheating). It can also include providing your assessment to another entity, such as to a person or website.

You are encouraged to make use of QUT’s learning support services, resources and tools to assure the academic integrity of your assessment. This includes the use of text matching software that may be available to assist with self-assessing your academic integrity as part of the assessment submission process.

Further details of QUT’s approach to academic integrity are outlined in the Academic integrity policy and the Student Code of Conduct. Breaching QUT’s Academic integrity policy is regarded as student misconduct and can lead to the imposition of penalties ranging from a grade reduction to exclusion from QUT.

Resources

You are required to use the following:

  • The unit website on QUT's Canvas (learning materials that support timetabled activities and assessment tasks)
  • QUT Library Databases
  • QUT Cite| Write: You can access QUT cite/write online (Free download from QUT library)

There is no required text for the mathematics component of this unit.

Resource Materials

Reference book(s)

ENB311 STRESS ANALYSIS - (compiled by) Kunle Oloyede. Custom Edition, Pearson, ISBN:978 1 4860 21598, 2014.

Risk Assessment Statement

You will be informed of any requirements pertaining to a safe workplace. In lectures, tutorials and such, the information will include location of fire exits and meeting points in case of fire. If you do not follow legitimate instructions or endanger the safety of others or do not act in accordance with the requirements of the Workplace Health and Safety Act, you will be required to leave the session.

You will be required to undertake practical sessions in the laboratory under the supervision of members in the teaching team and technical staff. Prior to entry to a laboratory space you must complete the Undergraduate Health,Safety and Environment Induction (annual completion requirement). You will be advised of requirements of safe and responsible behaviour and will be required to wear appropriate protective items (e.g. closed shoes or steel capped shoes, lab coat, and safety glasses). The unit’s Canvas site will provide you with a copy of the risk assessment and will provide you with details on how to perform the laboratory tasks safely.

Standards/Competencies

This unit is designed to support your development of the following standards\competencies.

Engineers Australia Stage 1 Competency Standard for Professional Engineer

1: Knowledge and Skill Base


  1. Relates to: Problem Solving Task, FEA Project (applied), Examination (written)

  2. Relates to: Problem Solving Task, Examination (written)

  3. Relates to: Problem Solving Task, FEA Project (applied), Examination (written)

  4. Relates to: FEA Project (applied)

  5. Relates to: FEA Project (applied)

2: Engineering Application Ability


  1. Relates to: Problem Solving Task, FEA Project (applied), Examination (written)

  2. Relates to: Problem Solving Task, FEA Project (applied), Examination (written)

  3. Relates to: FEA Project (applied)

3: Professional and Personal Attributes


  1. Relates to: FEA Project (applied)

Course Learning Outcomes

This unit is designed to support your development of the following course/study area learning outcomes.

EN01 Bachelor of Engineering (Honours)

  1. Engage stakeholders professionally and communicate the outcomes of your work effectively to expert and non-expert audiences using appropriate modes.
    Relates to: FEA Project (applied)
  2. Manage projects to solve complex engineering problems, using appropriate information, engineering methods, and technologies.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)
  3. Demonstrate coherent knowledge and skills of physical, mathematical, statistical, computer, and information sciences that are fundamental to professional engineering practice.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)
  4. Demonstrate a thorough understanding of one engineering discipline, its research directions, and its application in contemporary professional engineering practice.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)

EN55 Master of Professional Engineering

  1. Apply advanced and specialist knowledge, concepts and practices in engineering design, analysis management and sustainability.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)
  2. Critically analyse and evaluate complex engineering problems to achieve research informed solutions.
    Relates to: FEA Project (applied), Examination (written)
  3. Communicate complex information effectively and succinctly, presenting high level reports, arguments and justifications in oral, written and visual forms to professional and non specialist audiences.
    Relates to: Problem Solving Task, FEA Project (applied)
  4. Organise and manage time, tasks and projects independently, and collaboratively demonstrating the values and principles that shape engineering decision making and professional accountability.
    Relates to: FEA Project (applied)

EN60 Graduate Certificate in Communication for Engineering

  1. Demonstrate and apply specialised knowledge and technical skills in at least one Engineering discipline.
    Relates to: Problem Solving Task, Examination (written)
  2. Critically investigate real world engineering issues and solve complex problems drawing on specialised creative skills, analysis, evaluation and synthesis of discipline knowledge, theory and practice.
    Relates to: FEA Project (applied), Examination (written)
  3. Employ effective written and oral professional communication skills across social, cultural and discipline domains.
    Relates to: Problem Solving Task, FEA Project (applied)
  4. Exercise responsibility and accountability in applying knowledge and skills for own learning and effective practice including working independently, ethically and collaboratively.
    Relates to: FEA Project (applied)

EV01 Bachelor of Engineering (Honours)

  1. Engage stakeholders professionally and communicate the outcomes of your work effectively to expert and non-expert audiences using appropriate modes.
    Relates to: FEA Project (applied)
  2. Manage projects to solve complex engineering problems, using appropriate information, engineering methods, and technologies.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)
  3. Demonstrate coherent knowledge and skills of physical, mathematical, statistical, computer, and information sciences that are fundamental to professional engineering practice.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)
  4. Demonstrate a thorough understanding of one engineering discipline, its research directions, and its application in contemporary professional engineering practice.
    Relates to: Problem Solving Task, FEA Project (applied), Examination (written)