Dispersion and morphology analysis of PMMA/organoclay nanocomposites using the Ripley functions and determination of effective elastic properties

Kouassi A.Y.E.; Matadi Boumbimba R.; Sangare M.K.Koutsawa Y.Benelfellah A.Demais V.

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Dispersion and morphology analysis of PMMA/organoclay nanocomposites using the Ripley functions and determination of effective elastic properties

机译：Dispersion and morphology analysis of PMMA/organoclay nanocomposites using the Ripley functions and determination of effective elastic properties

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? 2023 Elsevier LtdThis paper deals with the microstructure of PMMA/organoclay nanocomposites and their effective elastic properties by the means of micro-mechanical modeling and numerical homogenization. PMMA matrix was reinforced by two types of organoclay (Cloisite 20A and Cloisite 30B) at both weight fraction from 1wt% to 5wt%. The microstructure characterization was based on the TEM images from which, Ripley functions K(r) and ImageJ software were used for organoclays dispersion and morphology analyses, respectively. Microstructures parameters such as elastic properties, volume fraction, random dispersion, platelet and prism inclusion types and aspect ratios were considered to 3D RVEs generation using Digimat-FE software. From the 3D RVEs, the numerical models were obtained and the effective elastic properties were determined by using Digimat-FE Solver. Thus, the variation of the computed properties has been investigated and illustrated. The Young's moduli (E) of each aspect ratio were compared to experimental data. From the results, the nanocomposite rigidity depends not only on the organoclays volume fraction in PMMA matrix but also on the dispersion state and the considered aspect ratio. The inclusion type would therefore not have an important impact on the effective elastic properties. Considering the same volume fraction and dispersion state of the organoclays, the best elastic effective properties were obtained for the smallest aspect ratio.

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来源
《Composite structures》 |2023年第5期|1.1-1.18|共18页
作者
Kouassi A.Y.E.; Matadi Boumbimba R.; Sangare M.K.Koutsawa Y.Benelfellah A.Demais V.;
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作者单位

Unité Mixte de Recherche et d'Innovation en mécanique et science des matériaux (UMRI 18) Ecole Doctorale Polytechnique Institut National Polytechnique Félix HOUPHOU?T-BOIGNY de Yamoussoukro;

Materials Research and Technology Department Luxembourg Institute of Science and Technology;

DRII IPSA||INSA CVL Univ. Tours Univ. Orléans LaMéPlateforme d'Imagerie In vitro CNRS UAR 3156 Université de StrasbourgUniversité de Lorraine CNRS Arts et Métiers ParisTech||Unité Mixte de Recherche et d'Innovation en mécanique et science des matériaux (UMRI 18) Ecole Doctorale Polytechnique Institut National Polytechnique Félix HOUPHOU?T-BOIGNY de YamoussoukroUniversité de Lorraine CNRS Arts et Métiers ParisTech;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
3D RVEs; Digimat-FE; Dispersion state; Effective elastic properties; Nanocomposites; Ripley Functions;

Dispersion and morphology analysis of PMMA/organoclay nanocomposites using the Ripley functions and determination of effective elastic properties

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