Guia docente 2023_24 Escola de Enxeñaría Aeronáutica e do Espazo

Solid mechanics and aerospace structures

Contents

Topic	Sub-topic
Introduction to the characteristics and configuration of the aeronautical structures.	- Loads on the structure. - Structural elements. Structure of the fuselage: monocoque, semimonocoque. Structure of wing and of tail.
Symmetrical structures.	- Symmetrical structures.
Efforts produced by bending moments and shear forces	- Theorem of the sharp flow. - Sharp efforts. - Combined bending in symmetrical structures.
Torsion.	- Sections no circular. Rectangular section. - Open sections of small thickness. Enclosed sections of small thickness. Enclosed multicellular sections. - Centre of torsion. - Bending-Torsion.
Analysis of tensions in wings.	- Analysis of tensions in wings.
Analysis of tensions in fuselages.	- Analysis of tensions in fuselages.
Introduction to the structural integrity	- Requirements of resistance and rigidity. Factor last of security. - Fatigue. Criteria of fatigue based in tensions. - Criteria of fatigue based in deformations. - Introduction to the mechanics of the fracture. Criteria of tolerance to the damage. Margin of security and factor of reservation.
Elements subjected to axial forces and bending moments	- Elements subjected to axial forces and bending moments. Ultimate bending moment.
Problems of buckling and instabilities.	- Introduction to the theory of the stability - Global buckling. Primary instability of columns of stable section. - Beam-column buckling. Crippling. - Instability of flat and curved panels - Local buckling of of thin wall beams - Stiffened panels. Failure modes for compression and shearing.
Unions in aeronautical structures.	- Unions in aeronautical structures.
Theory of plates and shells	- Structural elements type plate and shell. - Basic hypotheses of calculation. - Flexure of plates and shells. - Plate buckling.
Finite elements method (FEM).	- Linear static analysis with elements type sweep, elasticity 2D and 3D, plates and shells. - Introduction to software of FEM simulation - Structural instability. Buckling by FEM. - Introduction to the static analysis no-linear of structures: no-geometrical linearity, no-linearity of the material (plasticity), no-linearity been due to boundary conditions.