Civil-Comp Logo
Civil-Comp Press
Computational, Engineering & Technology
Conferences and Publications
The Eleventh International Conference
on Computational Structures Technology
Dubrovnik, Croatia
4-7 September 2012
Structural Waveguide Modelling Methods
organised by Prof. J.R.F. Arruda
and Prof. J.-M. Mencik
ENI Val de Loire - University of Tours, France
Session Aims and Scope
Wave-based numerical approaches have gained a large popularity over the past decades for predicting the dynamic behaviour of structures. One interesting feature of these methods is that they provide both an accurate description and a physical insight of the structure dynamics. As a second feature, they require small computational times (e.g. in comparison with the conventional FE method) for describing the frequency and time responses of systems.

Structural waveguide modelling methods belong to those wave-based approaches. Among these methods, one can mention numerical techniques based on spectral elements, wave finite elements and semi-analytical finite elements. Waveguide modelling methods have been initiated for predicting the 1D (or 2D) wave propagation in slender elastic systems with constant cross-section (or thickness), as well as periodic systems. The so-called waveguides can exhibit largely disparate natures, e.g. beam-like structures, multi-layered systems, flat or curve plates / shells with eventual stiffeners (e.g. aircraft fuselages), pipes with internal fluid (e.g. mufflers), and so on. The description of the related dynamic responses follows from wave expansion procedures for the kinematic and mechanical fields. The range of applications involved by these methods is wide and is certainly not limited to the study of single elastic waveguides. There are still many open great challenges with regard to the applicability of these methods to the study of complex problems, e.g. systems involving elastic waveguides interacting with arbitrary structures or fluid media.

The special session focuses on recent advances in waveguide modelling methods. The topics and applications involved by the session include (but are not limited to):

  • Wave propagation in multi-layered or multi-physical systems
  • Forced response computation
  • Fluid loading and acoustic radiation
  • Reflections / transmissions of waves at local singularities (e.g. non destructive testing) or coupling interfaces
  • Energy flow-based approaches
  • Uncertainties in wave propagation
  • Phononic crystals
For specific questions regarding the scope of this session please contact the organisers:
  • Prof. J.R.F. Arruda
    FEM-UNICAMP, Brazil
    (arruda AT
  • Prof. J.-M. Mencik
    ENI Val de Loire - University of Tours, France
    (jean-mathieu.mencik AT

Please note that papers that are found to fall outside the scope of this session may be considered for other sessions.

Abstract Submission
To submit abstracts for this special session, please follow the normal abstract submission procedure but please select "CST2012-S27" when asked "Is this paper part of a special session?"
Continue: Call-for-Papers