TITLE

Numerical Analysis of Piezoelectric Active Repair in the Presence of Frictional Contact Conditions

AUTHOR(S)
Alaimo, Andrea; Milazzo, Alberto; Orlando, Calogero; Messineo, Antonio
PUB. DATE
April 2013
SOURCE
Sensors (14248220);Apr2013, Vol. 13 Issue 4, p4390
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The increasing development of smart materials, such as piezoelectric and shape memory alloys, has opened new opportunities for improving repair techniques. Particularly, active repairs, based on the converse piezoelectric effect, can increase the life of a structure by reducing the crack opening. A deep characterization of the electromechanical behavior of delaminated composite structures, actively repaired by piezoelectric patches, can be achieved by considering the adhesive layer between the host structure and the repair and by taking into account the frictional contact between the crack surfaces. In this paper, Boundary Element (BE) analyses performed on delaminated composite structures repaired by active piezoelectric patches are presented. A two-dimensional boundary integral formulation for piezoelectric solids based on the multi-domain technique to model the composite host damaged structures and the bonded piezoelectric patches is employed. An interface spring model is also implemented to take into account the finite stiffness of the bonding layers and to model the frictional contact between the delamination surfaces, by means of an iterative procedure. The effect of the adhesive between the plies of piezoelectric bimorph devices on the electromechanical response is first pointed out for both sensing and actuating behavior. Then, the effect of the frictional contact condition on the fracture mechanics behavior of actively repaired delaminated composite structures is investigated.
ACCESSION #
87300895

 

Related Articles

  • TIME-HARMONIC BEHAVIOUR OF CRACKED PIEZOELECTRIC SOLID BY BOUNDARY INTEGRAL EQUATION METHOD. Rangelov, Tsviatko; Marinov, Marin; Dineva, Petia // Journal of Theoretical & Applied Mechanics;Mar2014, Vol. 44 Issue 1, p55 

    Anti-plane cracked functionally graded finite piezoelectric solid under time-harmonic elecromechanical load is studied by a non-hypersingular traction boundary integral equation method (BIEM). Exponentially varying material properties are considered. Numerical solutions are obtained by using...

  • Functional Fatigue in polycrystalline Shape Memory Alloys. Waimann, Johanna; Junker, Philipp; Hackl, Klaus // PAMM: Proceedings in Applied Mathematics & Mechanics;Dec2014, Vol. 14 Issue 1, p371 

    Shape memory alloys show the well known effect of pseudo-elasticity associated with the formation of two stress plateaus in the stress/strain diagram for tension tests. Due to cyclic loading, the stress plateaus decrease with every load cycle, particularly the upper one. This important effect of...

  • PART I: 'Smart metals' providing actuation, sealing, and completion functions downhole.  // Offshore;Dec2001, Vol. 61 Issue 12, p58 

    Explores the growing applications of smart metals or shape metal alloys (SMA) in petroleum industry. Functions of the SMA; Limitations of the SMA applications in the petroleum industry; Actuation application of smart metals.

  • Influence of structural transition on transport and optical properties of Ni[sub 2]MnGa alloy. Zhou, Y.; Jin, Xuesong; Xu, Huibin; Kudryavtsev, Y. V.; Lee, Y. P.; Rhee, J. Y. // Journal of Applied Physics;6/15/2002, Vol. 91 Issue 12, p9894 

    The transport and optical properties of Ni[sub 2]MnGa alloy in the martensitic and austenitic states were investigated. The dependence of the temperature coefficient of resistivity on temperature shows kinks at the structural and ferroparamagnetic transitions. Electron-magnon and electron-phonon...

  • Meshless EFG Simulation of Linear Elastic Fracture Propagation Under Various Loadings. Salari-Rad, Hossein; Rahimi-Dizadji, Morteza; Rahimi-Pour, Shiva; Delforouzi, Mahmood // Arabian Journal for Science & Engineering (Springer Science & Bu;Nov2011, Vol. 36 Issue 7, p1381 

    We used computational mechanics consisting of various numerical methods to analyze different problems under various boundary conditions. The main advantage of the element free Galerkin (EFG) method is that the model meshing stage is not required and the nodal points are distributed throughout...

  • Continuum Shape Sensitivity analysis of a mode-I fracture in functionally graded materials. Rahman, S.; Rao, B. N. // Computational Mechanics;Jul2005, Vol. 36 Issue 1, p62 

    This paper presents a new method for conducting a continuum shape sensitivity analysis of a crack in an isotropic, linear-elastic, functionally graded material. This method involves the material derivative concept from continuum mechanics, domain integral representation of theJ-integral and...

  • Fast multipole DBEM analysis of fatigue crack growth. Wang, P. B.; Yao, Z. H. // Computational Mechanics;Sep2006, Vol. 38 Issue 3, p223 

    A fast multipole method (FMM) based on complex Taylor series expansions is applied to the dual boundary element method (DBEM) for large-scale crack analysis in linear elastic fracture mechanics. Combining multipole expansions with local expansions, both the computational complexity and memory...

  • Finite separation method: an efficient boundary element crack modeling technique. Lalonde, S�bastien; Guilbault, Raynald // Computational Mechanics;Dec2009, Vol. 44 Issue 6, p791 

    In computational fracture mechanics, great benefits are obtained from the reduced modeling dimension order and the accurate integral formulation of the boundary element method (BEM). However, the direct representation of co-planar surfaces (i.e., cracks) causes a degeneration of the standard...

  • BEM–FEM coupling for 3D fracture mechanics applications. Frangi, A.; Novati, G. // Computational Mechanics;Dec2003, Vol. 32 Issue 4-6, p415 

    Attention is here focused on the implementation of a coupled BEM–FEM procedure employing the BE method for the modelling of the near-crack region and the FEM for the far-field, where no singularities in the stress field are expected to arise. The symmetric variational version of the BE...

Share

Read the Article

Courtesy of NEW JERSEY STATE LIBRARY

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics