Image-based modeling of moisture-induced swelling and stress in 2D textile composite materials using a global-local approach
| Autor: | Marco Gigliotti, Mikael Gueguen, Y. Sinchuk, Yannick Pannier |
|---|---|
| Přispěvatelé: | ENDOmmagement et durabilité ENDO (ENDO), Département Physique et Mécanique des Matériaux (Département Physique et Mécanique des Matériaux), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), ANR-11-LABX-0017,INTERACTIFS,Interactions and transfers at fluids and solids interfaces(2011), ANR-11-EQPX-0018,GAP,Plate-forme d'essais et de recherche sur les nouvelles technologies de ' Groupe Aéro Propulseur ' pour l'aéronautique et le spatial(2011) |
| Rok vydání: | 2017 |
| Předmět: |
Textile
Materials science [PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph] 02 engineering and technology [SPI.AUTO]Engineering Sciences [physics]/Automatic Stress (mechanics) [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] 0203 mechanical engineering Tournemire clay rock medicine Anisotropy measurement [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph] Composite material [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] [PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph] Moisture business.industry [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment Mechanical Engineering Global local [SPI.NRJ]Engineering Sciences [physics]/Electric power Digital image correlation Hydromechanical strains [CHIM.MATE]Chemical Sciences/Material chemistry Epoxy matrix [PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph] 021001 nanoscience & nanotechnology [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism [CHIM.POLY]Chemical Sciences/Polymers 020303 mechanical engineering & transports [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph] Textile composite Swelling medicine.symptom 0210 nano-technology business Image based |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, SAGE Publications, 2017, 232 (8), pp.1505-1519. ⟨10.1177/0954406217736789⟩ |
| ISSN: | 2041-2983 0954-4062 |
| Popis: | International audience; We describe a new method to quantify the anisotropy ratio of hydric strains acquired at the gallery scale and over a period of at least one year. This method was applied in the context of an investigation conducted on a gallery front of the Experimental Station of Tournemire (France), which was subjected to a natural seasonal cycle. Our approach was based primarily on a new algorithm for Digital Image Correlation, known as H-DIC, which can accurately locate desiccation cracks and extract fifteen uncracked blocks with quantified sub-vertical and sub-horizontal strains.The values of the anisotropy ratio of hydric strains (i.e., the ratio of the sub-vertical strains to the sub-horizontal strains, or the ratio of the strains perpendicular to the bedding to those parallel to the bedding) are in the range of [2.84–5.35], with a mean value close to 4.2.The anisotropy ratio for the hydric strains appears to be independent of the natural cycle (i.e., hygrometry) present in the gallery. This observation is supported by a theoretical estimation of this anisotropy ratio, which suggests that the poroelastic parameters of clay rock are insensitive to climatic changes or that theirs evolutions roughly cancel each other out. With regard to geometrical patterns (area, width, height, aspect ratio and orientation) calculated for the uncracked blocks, the anisotropy ratio of the hydric strains does not depend on the area of these uncracked blocks.Moreover, a literature review shows that the values of the anisotropy ratio for the hydric strains determined in this study are significantly larger than those obtained at the laboratory scale on undamaged samples or estimated from a theoretical relationship established in a poroelastic framework. These comparisons strongly suggest that damage to clay rock existing on the gallery front contributes to a significant increase in the anisotropy ratio of the hydric strains. |
| Databáze: | OpenAIRE |
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