| Titre : |
Numerical modeling of the effects of fiber packaging and reinforcement volume ratio on the transverse elasticity modulus of a unidirectional composite material glass/epoxy |
| Type de document : |
texte imprimé |
| Auteurs : |
Brek Samir, Auteur ; Meddour Belkacem, Auteur ; Groun Brahim, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 203-210 |
| Note générale : |
Bibliogr. |
| Langues : |
Français (fre) |
| Catégories : |
Composites à fibres de verre
Epoxydes
Fibres à orientation unidirectionnelle
Micromécanique (physique du solide)
Modèles numériques
|
| Tags : |
'Composites à fibres de verre' 'Analyse micromécanique' 'Prédiction des propriétés' 'Facteur renforcement' 'Module transverse' 'Lame unidirectionnelle' Epoxy |
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Composite materials are very widely used in the manufacturing of structures because of their specific mechanical properties. However, they are characterized by heterogeneity and anisotropy and they present great challenges in designing and also in predicting their behavior by using the numerical simulation. The unidirectional composite material has a more relevant property which is the transverse elasticity modulus E2. The determination of E2 is still interesting researchers because of the diversity of results obtained by several models and approaches. This study aims to predict the transverse elasticity modulus E2 of a unidirectional Glass/Epoxy composite material, the effect of the arrangement fibers on the transverse elasticity modulus and predict the values of the reinforcement factor used in the Halpin-Tsai model. To do so first we adopted the micromechanical approach, which is accurate but requires much computing, and we used a calculation code based on FEM method and considered two parameters to vary, which are the volume fraction of fibers and the distribution of fibers. The obtained results of numerical modeling were tightly compared to those obtained by the available analytical models and the adopted approach can be used to predict the transverse elasticity modulus E2 and the reinforcement factor ξ. |
| Note de contenu : |
- ANALYTICAL MODELS BASED ON THE RULE OF MIXTURE : Rule of mixture (ROM) - Halpin-Tsai (HT) and modified Halpin-Tsai (HTM) models - Chamis (CH) model - Tsai with contiguity model
- FINITE ELEMENT MODELING : Objective - Materials and characterizations - Representative volume element (RVE) - Cell geometry used for meshesMesh of the representative volume Calculation of the transverse elasticity module E2 - Calculation of the reinforcement factor ξ
- RESULTS AND DISCUSSION : The effect of the position of the fibers on the transverse modulus of elasticity E2 - Normal stress distribution σ22 - Transverse elasticity module as a function of the volume content of the fibers - Reinforcement factor as a function of the volume content of the fibers
- Table 1 : The elastic characteristics
- Table 2 : Boundary conditions along the 2 and 3 directions |
| DOI : |
https://doi.org/10.18280/rcma.305-602 |
| En ligne : |
https://www.iieta.org/download/file/fid/46441 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37652 |
in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 30, N° 5-6 (12/2020) . - p. 203-210
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Numerical modeling of the effects of fiber packaging and reinforcement volume ratio on the transverse elasticity modulus of a unidirectional composite material glass/epoxy in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 5-6 (12/2020)
