Strategies for the assessment of nanocomposite mechanical properties

Quaresimin, Marino; Salviato, Marco; Zappalorto, Michele

doi:10.1016/j.compositesb.2011.12.012

Cited by 45 publications

(17 citation statements)

References 94 publications

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“…The concept of assembling basic models to build a multiscale modeling strategy is referred to as the "three-stage strategy" (TSS) in the literature (Quaresimin et al, 2012). A schematic representation of this concept is shown in Figure 4.6.…”

Section: Preliminary Remarksmentioning

confidence: 99%

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Toughening mechanisms in nanoparticle polymer composites

Quaresimin

Salviato

Zappalorto

2015

Toughening Mechanisms in Composite Materials

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Section: Preliminary Remarksmentioning

confidence: 99%

“…The concept of the "three-stage strategy" (TSS): building of modeling strategies from basic models(Quaresimin et al, 2012).…”

mentioning

confidence: 99%

Toughening mechanisms in nanoparticle polymer composites

Quaresimin

Salviato

Zappalorto

2015

Toughening Mechanisms in Composite Materials

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“…Using the Box-Muller method (Box and Muller 1958), spheres were generated with diameters sampled at random from an experimentally determined distribution of aggregate sizes. The generated spheres were then inserted into an RVE by using Random Sequential Absorption (RSA) (Spencer and Sweeney 2008). RSA fills a volume by inserting objects at randomly generated coordinates subject to satisfying some criteria.…”

Section: Primitive Geometry Approachmentioning

confidence: 99%

Mesoscale modeling of cementitious materials : phase I

Chandler¹,

Lawrimore²,

Edwards³

et al. 2019

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Cementitious materials such as concrete are intrinsically heterogeneous and include internal structures and constituents across length scales ranging from nanometers to millimeters. These materials are widely used as protective materials for military applications. They need not only to withstand conventional quasi-static loadings but also to defeat extreme loadings such as high-rate blast, impact, and penetration. To fully explore the design and application of these materials in war-fighting efforts, it is essential to understand the deformation and failure mechanisms of multiscale internal structures and constituents under different loading conditions. Mesoscale structures and constituents of cementitious materials include mesoscale particles such as aggregates, sand, fibers, mesoscale porosities, and cracks. Several numerical methods have been developed to investigate the deformation and failure mechanisms of mesoscale structures and constituents under different loading conditions. In this report, we explored the Lattice Discrete Particle Method (LDPM) and the Finite Element Method (FEM). The work provides some basic knowledge on these methods and aids in formulating a path forward in the next phase of the research. DISCLAIMER: The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents.

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“…From Marino’s point of view, important sources of error in simulating the behavior of nanocomposites can be attributed to interfaces, agglomeration, and morphology [ 13 ]. The modeling of the interface between resin and nanoparticles is one of the main issues in the present study.…”

Section: Nanocomposite Modelingmentioning

confidence: 99%

“…The prediction of the mechanical properties of nanocomposites by numerical methods is a very suitable solution for reducing the extent of experimental work and as a result reducing the production costs. The methods used for the prediction of mechanical properties of nanocomposites can be classified as (i) theories based on continuum mechanics, (ii) atomistic modeling, and (iii) numerical continuum mechanics [ 13 ]. In this study, the finite element method (FEM) based on the numerical continuum mechanics approach has been used for modeling CNT/epoxy nanocomposite.…”

Section: Introductionmentioning

confidence: 99%

Using the Equivalent Fiber Approach in Two-Scale Modeling of the Elastic Behavior of Carbon Nanotube/Epoxy Nanocomposite

et al. 2018

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In this study, the mechanical behavior of epoxy/carbon nanotubes (CNTs) nanocomposite is predicated by a two-scale modeling approach. At the nanoscale, a CNT, the interface between the CNT and the matrix and a layer of the matrix around the CNT are modeled and the elastic behavior of the equivalent fiber (EF) has been identified. The CNT/epoxy interface behavior is modeled by the Park–Paulino–Roesler (PPR) potential. At the microscale, the EFs are embedded in the matrix with the extracted elastic properties from the nanoscale model. The random pattern has been used for the dispersing of EFs in the representative volume element (RVE). The effect of CNTs agglomeration in the epoxy matrix has also been investigated at the micro level. The Young’s modulus of the nanocomposite was extracted from simulation of the RVE. CNT/epoxy nanocomposites at four different volume fractions were manufactured and the modeling results were validated by tensile tests. The results of the numerical models are in good agreement with the experiments and micromechanics theory, and by considering agglomeration of CNT in the model, the modeling results match with the experiments.

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Strategies for the assessment of nanocomposite mechanical properties

Cited by 45 publications

References 94 publications

Toughening mechanisms in nanoparticle polymer composites

Toughening mechanisms in nanoparticle polymer composites

Mesoscale modeling of cementitious materials : phase I

Using the Equivalent Fiber Approach in Two-Scale Modeling of the Elastic Behavior of Carbon Nanotube/Epoxy Nanocomposite

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