2022/23 Taught Postgraduate Module Catalogue
JACO0004 Design of Surface Contacts
24 creditsClass Size: 20
Module manager: Professor Bruno Trindade
Email: bruno.trindade@dem.uc.pt
Taught: Semester 1 (Sep to Jan) View Timetable
Year running 2022/23
Pre-requisite qualifications
Min 2(i) Engineering or Physical SciencesThis module is not approved as an Elective
Objectives
The main objective of this course is to prepare the students for their thesis, supplying them with basic concepts of the main failure modes in mechanical engineering and the way how to characterise the mechanical behaviour of a material. This is a fundamental part in the understanding of the tribological behaviour. Therefore, the fundamental knowledge of mechanical behaviour such as elastic and plastic strains, ductile and brittle failures, fatigue, wear and corrosion will be presented. In the same line, the main techniques used for theLearning outcomes
The students must gain basic knowledge in mechanical design (fracture, plasticity, fracture toughness). Some seminars which address topics on the mechanical behavior such as elastic and plastic deformation, ductile and brittle fracture, fatigue, wear and corrosion are programmed.
A report must be submitted at the end of the semester which will be an integral part of their final master thesis. Therefore, students will attend some seminars related to their scientific themes and will be accompanied by their supervisors in a tutorial way.
Skills outcomes
Analysis and synthesis
Problems resolution
Critical reasoning
Autonomous learning
Ability to apply in practical situations the theory
Syllabus
1. Failure modes in materials -elastic and plastic strains; ductile and brittle failures; failure characterisation
2. Fracture - Griffith theory; release rate of energy; stress intensity factory; plastic deformation in the tip of the crack; dependence of toughness on the sample thickness, temperature and kind of material; opening crack displacement; J integral.
3. Fatigue - fatigue process; endurance limit; oligocycle fatigue; analysis of cracks propagation; fatigue curves; threshold and speed parameters in cracks propagation; applications of da/dN-DK curves.
4. Creep - classes of creep; importance of creep in components with long life; stress relaxation and recovery; design of materials submitted to creep loading.
5. Corrosion - metallic corrosion; corrosion types; corrosion protection and prevention; specific cases of corrosion (biocorrosion and stress corrosion).
6. Wear - failure modes and their interaction in the wear mechanisms; examples of application
7. Techniques for samples preparation - metallography; ion milling; cross section TEM preparation
8. Morphological analysis - profilometry; grain particle distribution; porosity evaluation.
9. Corrosion analysis - Voltametry; potentiometry; polarigraphy; electrogravimetry.
Teaching methods
| Delivery type | Number | Length hours | Student hours |
| Seminars | 15 | 1.00 | 15.00 |
| Lecture | 30 | 1.00 | 30.00 |
| Practical | 15 | 1.00 | 15.00 |
| Tutorial | 10 | 1.00 | 10.00 |
| Private study hours | 170.00 | ||
| Total Contact hours | 70.00 | ||
| Total hours (100hr per 10 credits) | 240.00 | ||
Methods of assessment
Coursework
| Assessment type | Notes | % of formal assessment |
| Fieldwork | . | 25.00 |
| Total percentage (Assessment Coursework) | 25.00 | |
Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated
Exams
| Exam type | Exam duration | % of formal assessment |
| Standard exam (closed essays, MCQs etc) | 0 hr | 75.00 |
| Total percentage (Assessment Exams) | 75.00 | |
Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated
Reading list
There is no reading list for this moduleLast updated: 29/04/2022 15:31:26
Browse Other Catalogues
- Undergraduate module catalogue
- Taught Postgraduate module catalogue
- Undergraduate programme catalogue
- Taught Postgraduate programme catalogue
Errors, omissions, failed links etc should be notified to the Catalogue Team.PROD