2025

Aerospace Structures II

Name: Aerospace Structures II
Code: EME14864L
6 ECTS
Duration: 15 weeks/156 hours
Scientific Area: Engenharia Aeroespacial

Teaching languages: Portuguese
Languages of tutoring support: Portuguese

Sustainable Development Goals

Learning Goals

This course follows up from a previous one (Aerospace Structures II) where an introduction to Solid Mechanics and Strength of Materials was made.

Students will now develop the following skills:

- To dimension aerospace structures, making use of energetic theorems, applicable to hiperstatic structures.
- To understand the phenomenon of fatigue in materials, with direct application to aeronautic structures.
- To be able to discretise a structure and apply matrix-based methods for its structural analysis.

Contents

The course is divided in two modules. The first module will deepen the students’ knowledge on structural analysis using analytical methods. The second module will introduce the fundaments for structural numerical calculus.

Module 1 (75% of contact time)
1) Energy theorems. Energy of deformation. Theorem of Virtual Work.
2) Theorem of Complementary Virtual Work. Theorem of Unit Load.
3) Computation of Virtual Work of Deformation. Bonfim Barreiros’ Method.
4) Buckling. Theory of Euler.
5) Fatigue. Accumulated fatigue.
6) Stress concentrations. Combined loading.
7) Low cycle fatigue.

Module 2 (25% of contact time)
8) Discretisation of a structure.
9) Linear elastic analysis in 2D.
10) Shape functions.
11) Transformation of coordinates. Numerical integration.

Teaching Methods

Theoretical classes dedicated to the introduction of the theoretical principles of the syllabus.
Theoretical-practical classes with practical applications of the theoretical concepts exposed before and solving exercises.
Students are invited to solve the exercises during the class.
Seminars by invited specialists.
Practical application of discretisation concepts to airplane and/or satellite structures (wing spar, wing profile, sandwich panels on satellite’s structure, etc).

Assessment

The grades are within the interval [0,20].
Continuous assessment or by final exam, in accordance with the Academic Regulations of the University of Évora.
Final classification N=Max(E1,E2,0.4*(NF1+NF2)+0.2*NT)

NF1 – First Test
NF2 – Second Test
NT – Technical work
E1 – First Exam
E2 – Second Exam

Students may pass this course either through continuous evaluation, with two tests and one technical work, or through global exam.