Analysis of moisture diffusion induced stress in carbon/epoxy 3D textile composite materials with voids by µ-CT based Finite Element Models

Autor: Y. Sinchuk, Marco Gigliotti, Yannick Pannier, R. Antoranz-Gonzalez
Přispěvatelé: Institut Pprime (PPRIME), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers, ENDOmmagement et durabilité ENDO (ENDO), Département Physique et Mécanique des Matériaux (Département Physique et Mécanique des Matériaux), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-Institut Pprime (PPRIME), ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS)-Université de Poitiers
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Materials science
[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph]
Voids
02 engineering and technology
Orthotropic material
[SPI.AUTO]Engineering Sciences [physics]/Automatic
Stress (mechanics)
0203 mechanical engineering
[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]
Periodic boundary conditions
Texture (crystalline)
Moisture diffusion
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
Diffusion (business)
Composite material
[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
µ-Computed
Civil and Structural Engineering
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
[PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph]
Tomography (CT) based Finite Element Models
[SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment
[SPI.NRJ]Engineering Sciences [physics]/Electric power
3D textiles
Epoxy
Composite materials
[CHIM.MATE]Chemical Sciences/Material chemistry
[PHYS.MECA.MSMECA]Physics [physics]/Mechanics [physics]/Materials and structures in mechanics [physics.class-ph]
021001 nanoscience & nanotechnology
Fick's laws of diffusion
Finite element method
[PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph]
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism
020303 mechanical engineering & transports
[CHIM.POLY]Chemical Sciences/Polymers
visual_art
Ceramics and Composites
visual_art.visual_art_medium
[PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph]
0210 nano-technology
Zdroj: Composite Structures
Composite Structures, Elsevier, 2019, 212, pp.561-570. ⟨10.1016/j.compstruct.2018.12.041⟩
ISSN: 0263-8223
Popis: International audience; The present paper focuses on the analysis of moisture diffusion, induced swelling and stress in carbon/epoxy 3D textile composite materials with voids using µ-Computed Tomography (µ-CT) image-based Finite Element (FE) Models. Based on real images of the material, the FE model includes all the details of the textile architecture, texture defects and voids. The moisture diffusion coefficient of the resin is identified from an optimization procedure which fits the results of the FE analysis to the experimental data from water absorption tests. The model is then used for diffusion simulation in a material without voids and for calculation of diffusion induced swelling and stress. The effective diffusion properties of the composite material are calculated using FE analysis with periodic boundary conditions (PBC) and used for analytical-based simulation of the diffusion behaviour. It is shown that the µCT image-based model does not predict Fickian behaviour, due to a microstructural effect. The µCT image-based model can be employed for the simulation of the moisture induced stress in the different phases of the composite material. The equivalent homogeneous model in which diffusion properties are "smeared" in an equivalent homogeneous orthotropic material cannot emphasize the distinct effect of the different phases.
Databáze: OpenAIRE
Externí odkaz: