Modeling of anisotropic hyperelastic heterogeneous knitted fabric reinforced composites
| Autor: | Pauline Lecomte-Grosbras, Mathias Brieu, Jean-François Witz, Damien Soulat, Laure Astruc, François Lesaffre, Annie Morch |
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| Přispěvatelé: | Laboratoire de Mécanique Multiphysique Multiéchelle (LaMcube), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Ecole nationale supérieure des arts et industries textiles de Roubaix (ENSAIT), Génie et Matériaux Textiles (GEMTEX), Université de Lille-Centrale Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
Textile
Materials science Composite number Uniaxial tension anisotropy 02 engineering and technology Elastomer 01 natural sciences knitted fabric 010305 fluids & plasmas rubber-like materials 0103 physical sciences composite hyperelasticity Composite material Anisotropy Network model business.industry Mechanical Engineering Strain energy density function [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] network model 021001 nanoscience & nanotechnology Condensed Matter Physics constitutive modeling Mechanics of Materials Hyperelastic material 0210 nano-technology business |
| Zdroj: | Journal of the Mechanics and Physics of Solids Journal of the Mechanics and Physics of Solids, Elsevier, 2019, 127, pp.47-61. ⟨10.1016/j.jmps.2019.03.006⟩ Journal of the Mechanics and Physics of Solids, 2019, 127, pp.47-61. ⟨10.1016/j.jmps.2019.03.006⟩ |
| ISSN: | 0022-5096 |
| DOI: | 10.1016/j.jmps.2019.03.006 |
| Popis: | International audience; Knitted fabrics are used to manufacture soft implants for medical applications. Once integrated in the body, the fabric forms a new composite material with the native and scar tissues. The mechanical behavior of the composite is assumed to be hyperelastic to match with the physiological behavior of the native tissues and thus to improve the fabric in vivo integration. Being able to predict the mechanical behavior of the composite regarding the tissue nature and the textile properties would accelerate the choice of the appropriate knit. We propose an approach for modeling the mechanical behavior of an hyperelastic material reinforced by a knitted fabric. The main idea of the modeling approach described in the present paper is to couple micro or meso-structural observations with mechanical considerations. Knitted fabric composites display oriented and periodic microstructures. Since most knitted fabrics present a non-linear anisotropic mechanical behavior, the hyperelastic directional formalism seems appropriate to model the reinforced elastomer. This work focuses on the development of a new directional model for the mechanical representation of anisotropic knitted fabric reinforced elastomers. The material is described with the help of a discrete network of directions that contribute distinctively to the material's global behavior. Experimental data obtained on reinforced elastomer composites were used to confirm the accuracy of the results as well as the prediction capabilities of the model. It seems able to represent an anisotropic stress answer of microstructured composite in uniaxial tension. |
| Databáze: | OpenAIRE |
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