Advanced Dynamic Modelling of Adaptative Multifunctional Materials and Structures - ADYMA

Coordinating Institution: CRP Henri Tudor
Contracting Partner(s): Saint-Gobain Abrasives , Technical University of Riga (LV)
Other Partner(s): University of Metz
From: 01/02/2009
To: 31/01/2012
Budget: 405,000.00€
Contact(s): Belouettar Salim

Progress Summary 2009

Adyma aims to develop a vibration control technology to enable higher performance and lightweight structural systems. The proposed technology involves reducing detrimental vibration in flexible structures and systems by active and/or passive procedures. Passive procedures include structural optimization and apply passive damping treatments: viscoelastic constraint layers and shunted piezoceramics.

Active procedures include the use of piezoelectric material in the form of layers or patches embedded and/or surface bonded combined to control systems to couple sensor measurements to actuator forces via distributed or centralized processing to provide the capability to control or adapt the structures dynamic response. Scientifically ADYMA project spans a broad of scope of 3 senior researchers and 1 PhD student are actively involved.

It is therefore impossible to describe here all important results. Instead, we want to present few highlights in exemplary way. Inverse techniques, consisting of the experimental set-up, numerical models and material identification procedures, have been developed for characterisation of advanced composite material and piezoelectric properties.

These methods rely on experimental undamped natural frequencies of free vibration. A novel finite element for the analysis of global and local instability phenomena in sandwich beams. The proposed one-dimensional (1D) finite element (FE) takes into account the beam thickness variation considering layer-wise higher-order transversal displacements. This allows for capturing local effects (e.g., wrinkling) in sandwich beams using only 1D modelling. The asymptotic numerical method is used, in combination with the FE modelling, to solve the nonlinear equations.

An advanced numerical method was developed for determining complex vibrations modes of sandwich structures with piezoelectric and viscoelastic layers. Based on homotopy and asymptotic numerical techniques, this method leads to the damping properties calculation (loss factor and natural frequency per mode) of the hybrid sandwich structure. An analytical method is developed for damping analysis of sandwich beams with piezoelectric and viscoelastic layers.

Based on the classical zig-zag model and some assumptions about the electric field, the developed methodology leads to an analytical expression of the modal loss factor and frequency. Considering two feedback control laws, the obtained hybrid damping of the sandwich beam is characterized. Numerical finite element applications are considered, in order to examine the efficiency and limitations of the presented method. A non linear multiscale approach based on Arlequin method has been developed to study local effects in sandwich structures.

Refereed Scientific Publications
  • Multi-scale nonlinear modelling of sandwich structures using the Arlequin method. Composite Structures, Volume 92, Issue 2, January 2010, Pages 515-522 by Heng Hu, Salim Belouettar, Michel Potier-Ferry, El Mostafa Daya, Ahmed Makradi
  • A numerical method for nonlinear complex modes with application to active–passive damped sandwich structures. Engineering Structures, Volume 31, Issue 2, February 2009, Pages 284-291 by Hakim Boudaoud, Salim Belouettar, El Mostafa Daya, Michel Potier-Ferry
  • A novel finite element for global and local buckling analysis of sandwich beams Composite Structures, Volume 90, Issue 3, October 2009, Pages 270-278. Heng Hu, Salim Belouettar, Michel Potier-Ferry, Ahmed Makradi
  • Experimental and numerical characterization of honeycomb sandwich composite panels. Simulation Modelling Practice and Theory, Volume 17, Issue 10, November 2009, Pages 1533-1547. Ahmed Abbadi, Y. Koutsawa, A. Carmasol, S. Belouettar, Z. Azari
  • Damping analysis of beams submitted to passive and active control Engineering Structures, Volume 31, Issue 2, February 2009, Pages 322-331 by H. Boudaoud, E.M. Daya, S. Belouettar, L. Duigou, M. Potier-Ferry

Other Publications

  • Failure Analysis of Composite Plates via Hierarchical Models. Cahiers de l’innovation N°3 pages 23-35 ; 2009. Tudor Publications by Gaetano Giunta, Salim Belouettar, Yao Koutsawa
  • Multiscale modeling of sandwich structures using the Arlequin method. Cahiers de l’innovation N°3 pages 37-45 ; 2009. Tudor Publications by Salim Belouettar, Heng Hu and Yao Koutsawa
  • Wrinkling and Buckling Analysis of Honeycomb Sandwich Composite Structures. Cahiers de l’innovation N°3 pages 121-129; 2009. Tudor Publications Salim Belouettar, Heng Hu, Yao Koutsawa Programme:ERA-Nets MATERA/MNT

Foreign Funding Agency:

  • LCS (Latvia) ; MECE

Project Website: