Course information

Responsible Instructor
Name E-mail
Dr. M.M. Abdalla
Name E-mail
C. Kassapoglou
Contact Hours / Week x/x/x/x
Education Period
Start Education
Exam Period
Course Language
Expected prior knowledge
Mechanics, Differential Equations, Ae2522
Course Contents
1. Computation of structural deflections for thin-walled
structures - continuation. (Applying the Dummy Unit Load
Method, computation of relative displacements).
2. Analysis of Statically Indeterminate Structures. (External vs
internal redundancies, multiple redundancies, applications
to wing and fuselage structures).
3. Engineering theory of bending for open and closed tubes
– an overview. (General stress, strain and displacement
relationships for open and closed tubes).
4. Shear flow in open and closed tubes.
5. Twist and warping of shear loaded closed tubes.
6. Displacements associated with the Bredt-Batho shear flow.
7. Warping distribution of a doubly symmetrical rectangular
closed tube subjected to a torque.
8. Warping of open tubes.
9. Axial constraint stresses in open tubes. (The Wagner
torsion-bending theory, calculation of the torsion bending
constant, the “wire analogy for flat sided sections).
10. Axial constraint stresses in closed tubes. (Doubly
symmetrical single cell, 4-boom tube under torsion).
11. Shear diffusion. (Axial constraint stresses in a doubly
symmetrical single cell 6 stringer tube subjected to a
transverse shear force).
12. Elements of plate bending theory. (Kirchhoff’s assumptions,
equilibrium equations via the stationary value of the
potential energy, Kirchhoff’s derivation of the boundary
conditions, simply supported rectangular plate under
sinusoidal loading, Navier’s solution for simply supported
rectangular plates, the Green’s function of the rectangular
Study Goals
This course is designed to introduce students who wish to
specialize in stress analysis of thin-walled structures to more
advanced topics such as the analysis of statically indeterminate
structures, warping, constraint stresses, shear diffusion, and
elements of plate bending.
Education Method
Lectures with Assignments
Literature and Study Materials
T.H.G. Megson, Aircraft structures for engineering
students, Edward Arnold, 4th edition
Written report containing worked out assignments
More information can be found on Blackboard.
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