Materials for Aeronautics

Scholar Year: 2020/2021 - 2S

Courses

Head Teacher Responsability Ana Mafalda Saldanha Guedes Head

Weekly workload Hours/week T TP P PL L TC THE EL OT OT/PL TPL S Type of classes 2 2 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 1 2,00 Bruno Nunes   2,00 Prática Laboratorial Totals 1 2,00 Bruno Nunes   2,00

Teaching language

Portuguese

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

- Knowledge of metallic materials and their properties, with relevance for ferrous, nickel and light alloys.
- Ability to select thermal or surface treatments suitable for the required mechanical, thermal and tribological properties.
- Knowledge of polymeric materials and their properties and of dedicated production and processing techniques. Knowledge of the effect of processing additives upon mechanical properties.
- Knowledge of composite materials, with relevance to fibre reinforced polymer matrix composites. Select available fibres for reinforcement and the main processing techniques; identify manufacturing defects and associated causes. Knowledge of mechanical properties of fibre reinforced polymer matrix composites, with relevance to fracture modes and mechanisms.
- Knowledge of advanced composites, with relevance to laminated and sandwich composites.

Syllabus

1. METALS AND ALLOYS
Ferrous and non-ferrous alloys. Alloy steels. Aluminum alloys. Magnesium alloys. Titanium alloys. Nickel alloys. Special processes: heat treatments, surface treatments, influence upon mechanical properties.
2. POLYMERS
Thermosetting and structural thermoplastics. Elastomers. Vulcanisation. Mechanical properties. Plastic deformation. Viscoelasticity. Creep and fracture of polymeric materials. Fracture. Additives. Effect on the mechanical properties.
3. COMPOSITES
Fibres for reinforcement. Fibre reinforced plastics. Law of mixtures. Influence of fibre length. Influence of fibre orientation and concentration. Continuous fibre composites. Specific mechanical properties. Processing of fibre reinforced plastics: out-of-the-autoclave and autoclave processes. Moulding defects. Fracture mechanisms. Fibre-matrix bond. Fracture modes. Composite laminates. Sandwich composites.

Teaching methodologies

Theoretical-Practical classes:
Theoretical exposure of concepts followed by demonstrative problems.
Practical-Lab classes: Experimental work in lab environment + Solving exercises and case studies.

Assessment methodologies and evidences

HYPOTHESIS 1
Distributed evaluation without final exam. Involves three assessment topics throughout the semester:
- Intermediate tests (2 tests) - 60%
- Laboratory work with delivery of written report (5 experiments) - 20%, only the top 4 marks are considered
- Presentation of a bibliographic research work - 20%

It is mandatory to do both tests. Failure to submit one of the other elements implies "zero" grade on that evaluation element. There is no "recap" or improvement of lab grades.
The tests have no minimum grade; average grade of the two tests has to exceed 9 val.
Passing the course demands a final mark higher than 9,5 val.
There is no "recap" or improvement of test scores.

or
HYPOTHESIS 2
Distributed evaluation with final exam. It involves two evaluation topics:
- Final exam - 80%
- Laboratory work with written report (5 works) - 20%, only the top 4 marks are considered.
Failure to submit one of the reports implies "zero" grade on that work. There is no "recap" or improvement of laboratory notes.
Approval demands exam grade higher than 9.5 val and an average grade higher than 9.5 val.

Attendance system

Working-students, federate athletes, associative leaders and students under the Religious Freedom Act should contact the responsible teacher by the end of the second week of the semester, in order to present their relevant specificities, in accordance with the respective diplomas.

Primary Bibliography

Secondary Bibliography

Observations

1. All information on the course is available in the "Contents" area in the IS.

2. The tests and exams are carried out without consultation.

3. It is mandatory to take the Laboratory Guide to the corresponding lab class. The Guide should be read and studied before class.

4. Students may only present reports of evaluation activities when they have effectively participated in the activity.

5. The use of mobile phones in the classroom and in the laboratory is strictly forbidden.

Students office hours (E116):
- Monday, 9: 00-10: 30.
- Tuesday, 14: 00-15: 00 h.