Sage Journals: Discover world-class research

Abstract

The purpose of the present study is to propose a strategy for identifying the mechanical characteristics of fibers and the damage in composite materials, based on an inverse method coupled with homogenization. It consists, in a general and systematic way, in coupling a homogenization procedure chosen by the user, with an appropriate numerical optimization algorithm. The method can be interpreted as a procedure for passage from macroscopic to mesoscopic scale. In this respect, it is shown that our method is capable of providing estimates of mesoscopic properties that are difficult to obtain experimentally. The proposed identification method is applied to examples of damaged and undamaged composites including those made of woven and unwoven natural fibers of Alfa and a polyester resin matrix. Identification results obtained by the proposed inverse method are compared to data taken from the literature to show its effectiveness.

Keywords

composites homogenization identification mesoscale damage inverse method optimization.

Get full access to this article

View all access options for this article.

References

Gay, D. ( 1987). Matériaux Composites, Hermes , Paris.

Chevalier, Y. (1989). Micromécanique des Composites- Prévisions en Elasticité, en Viscoélasticité et à la Rupture, Techniques de l’ingénieur, traité A7780:1-19, traité A7781: 1-13.

Paumelle, P. ( 1991). Calcul et Analyse du Comportement des Structures Composites Tissées Méthode Intégrales et Homogéneisation , PhD Thesis, Univ. P& M. Curie, Paris.

Chafra, M. and Chevalier, Y. ( 2005). Directional Damage and Failure of Composite Materials under Cyclic Loading, International Journal of Vehicle Design , 39(1/2): 163-171.

Kim, S.K. and Lee, W.L. (2002). Solution of Inverse Heat Conduction Problems Using Maximum Entropy Method, International Journal of Heat and Mass Transfer, 45: 381-391.

Zulliger, M.A. , Fridez, P. , Hayashi, K. and Stergiopulos , N. (2004). A Strain Energy Function for Arteries Accounting for Wall Composition and Structure, Journal of Biomechanics, 37: 989-1000.

Dinescu, D. , Sol, H. and Hoes, K. ( 2005). RTM Perform Permeability Identification by an Iterative Inverse Technique, Department of Mechanics of Materials and Constructions , Vrijie Universiteit, Brussel (VUB).

Halpin, J.C. ( 1992). Primer on Composite Materials Analysis, 2nd edn, Technomic Publishing Co, Lancaster, PA.

Reference Guide, MATLAB High-performance Numeric Computation and Visualization Software, (1992).

10.

Smaoui, H. , Chafra, M. , Moussaoui, A. and Chevalier, Y. ( 2005). Identification of Behaviour Laws and Failure Criteria Parameters of Composites based on Off Axes Texts, Science and Engineering of Composite Materials, 12(1/2): 83-92.

11.

Ben Cheikh, R. and Ben Brahim, S. ( 2001). The Alfa Fibers in Composite Materials, ID1620, In: International Conference on Composite Materials ICCM13 , Beijing, China, June.

12.

Ladevèze, P. , Allix, O. and Cluzel, C. ( 1993). Damage Modeling at the Macro and Meso Scales for 3D Composites , In: Voyiadjis, G.Z. (ed.), Damage in Composite Materials, pp. 195-215, Elsevier Science Publishers B.V.

13.

Chafra, M. and Baltov, A. ( 1995). Modélisation Tridimensionnelle de l’endommagement et de la Rupture des Matériaux Composites Fibres et Tissés, Journal de Mécanique Industrielle et des Matériaux Avancés , 48(3): 153-156.

Identification of Mechanical Properties and Damage of Composites at the Mesoscale based on an Inverse Method Coupled with Homogenization

Abstract

Keywords

Get full access to this article

References