Chair of Aircraft Structures

Project Laboratory
Research Projects

Strength of Composite Aircraft Structures


Lectures + Exercises
Subject Designation
2 + 1


Subject Holder:



Introduction to strength analysis of basic elements of composite aeronautical structure in order to be able to size the typical structural elements of an aircraft



  • Elasticity and stiffness matrices. Basic constitutive equations of layered materials. A, B, D matrices.
  • Thermal and moisture induced stresses.
  • Bending of thin plates under continuous loading. Long plates.
  • Buckling of rectangular plates with material symmetry.
  • Plates with circular and elliptical openings.
  • Sandwich plates. Basic equations. Boundary conditions. Elasticity matrix.
  • Bending of rectangular sandwich plates. Long plates. Influence of material model and layering setup.
  • Buckling of rectangular sandwich plates. Wrinkling of face layers.
  • Beams. Basic equations. Boundary conditions. Elasticity matrix and equivalent stiffness.
  • Axial loading and bending of beams with rectangular cross section.
  • Bending of thin-walled beams.
  • Torsion of thin-walled beams.
  • Axisymmetrical loading of shells of revolution. Membrane stresses.
  • Buckling of shells.


Teaching material:

As provided to students during lectures


Additional References:

  • Kolar, L.P., Springer, G.S.: Mechanics of Composite Structures, Cambridge University Press, 2003.
  • Gay, D., Hoa, S..V.: Composte Materials – Design and Applications, CRC Press, 2007.
  • Tsai, S. W.: Theory of Composites Design, Think Composites, Dayton, 1993.
  • Niu, M.C.Y., Composite Airframe Structures, Conmilt Press, 1992.
  • Middleton, D. H.: Composite Materials in Aircraft Structures, Longman Scientific & Technical, Harlow, 1990.
  • Baker, A.A., Dutton, S., Kelly, D.: Composite Materials for Aircraft Structures, AIAA, 2004.

Administrator        LAST CHANGE: 28.03.2017