A new approach for prediction of elastic modulus of polymer/nanoclay composites by considering interfacial debonding: Experimental and numerical investigations

Heydari-Meybodi, Mahdi; Saber‐Samandari, Saeed; Sadighi, Mojtaba

doi:10.1016/j.compscitech.2015.07.014

Cited by 46 publications

(20 citation statements)

References 43 publications

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“…Heydari et al simulated elastic modulus of polymer reinforced with clay considering both perfect and imperfect bonds between clay platelets and polymer matrix. The interfacial strength of polymer clay was recognized as the main factor determining the performance of composite . A computational model for mechanical behavior of nanoparticle‐reinforced polymer composite was developed by Peng et al, taking into account the polymer‐particle interface condition and particles clustering effect.…”

Section: Introductionmentioning

confidence: 99%

Simulation of dynamic mechanical and viscoelastic behavior in polymer/clay nanocomposites

Shelesh‐Nezhad

2019

Polymer Composites

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Viscoelastic behavior of a polymer‐based composite displays the energy storage and damping capabilities of the composite. Simulation and numerical modeling of viscoelastic behavior can aid to estimate the viscoelastic data and optimize the formulations of composites. It is possible to simulate the viscoelastic behavior of a polymeric composite by using the dynamic mechanical analysis (DMA) data of pure polymeric matrix and elastic properties of reinforcement. In this study, three‐dimensional FE analysis was performed to study the viscoelastic behavior of poly(butylene terephthalate)(PBT)/polyurethane/clay nanocomposite by employing representative volumetric element and explicit dynamic analysis. A modified generalized Maxwell model was employed to express the viscoelastic behavior of polymer matrix. Experimental results of DMA for PBT/polyurethane and also elastic data of nanoclay were used in the finite element modeling, and subsequently, the storage and loss moduli of nanocomposite were predicted. The results of simulations were close to those of experiments particularly at low clay content (2 wt%). The aggregation of clays at higher content (4 wt%), increased the differences between experimental and FEM results.

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Section: Introductionmentioning

confidence: 99%

Simulation of dynamic mechanical and viscoelastic behavior in polymer/clay nanocomposites

Shelesh‐Nezhad

2019

Polymer Composites

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“…After the optimum weight percentage is reached, due to stress concentration, the elastic modulus will decrease. 27 The aim of the present work is to research the properties of UHWMPE hybrid composite in poly (ethylene-co-vinyl acetate) matrix modified by commercial nanoparticles and whiskers of Al 2 O 3 as fillers, and comparing the properties of composite in case of using new synthesized particles of alumina doped with iron oxide.…”

Section: Introductionmentioning

confidence: 99%

“…After the optimum weight percentage is reached, due to stress concentration, the elastic modulus will decrease. 27…”

Section: Introductionmentioning

confidence: 99%

Processing and characterization of UHMWPE composite fibres with alumina particles in poly(ethylene-vinyl acetate) matrix

Zec

Tomić

Zrilić

et al. 2017

Journal of Thermoplastic Composite Materials

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Processing of hybrid composites represents a challenge for engineers where the aim is to establish compatibility among several materials. The aim of this study is to evaluate the effects of different size and morphology of alumina fillers on the mechanical and thermal properties of the composite fibers based on ultra-high molecular weight polyethylene fibers (UHMWPE).These fibers have an outstanding elastic modulus and they are compatible with nonpolar sequences of the poly(ethylene-co-vinyl acetate) (EVA) matrix. Compared to the fibers, inferior mechanical properties of the matrix can be improved using alumina particles. Commercial Al 2 O 3 nanoparticles, commercial whiskers and synthesized particles of Al 2 O 3 doped with iron oxide, incorporated in different weight percent were used as fillers. The UHMWPE fibers were impregnated using the solution of EVA in toluene with dispersed particles. FT-IR and FE-SEM were used for structural examination. Tensile testing revealed increasing of modulus of elasticity and strengths of obtained hybrid composite fibers. Thermal gravimetry showed improved thermal stability up to 350°C of the hybrid composite fibers with alumina particles doped with iron oxide. Results of tested samples showed that the best mechanical properties were for hybrid composite fibers with 1 wt.% of iron doped alumina filler.

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“…First, a perfect bonding or an interphase is implemented for boundary nodes around the fiber/matrix interface. 100,101 Second, a frictional contact is introduced to model the mechanical behavior of the fiber/matrix interface. 102,103 Third, spring elements or cohesive elements are introduced to define interphase with a constitutive law.…”

Section: Fe Models For Nfrcsmentioning

confidence: 99%

Finite element models of natural fibers and their composites: A review

Xiong

Shen

Hua

et al. 2018

Journal of Reinforced Plastics and Composites

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Finite element method has been widely applied in modeling natural fibers and natural fiber reinforced composites. This paper is a comprehensive review of finite element models of natural fibers and natural fiber reinforced composites, focusing on the micromechanical properties (strength, deformation, failure, and damage), thermal properties (thermal conductivity), and macro shape deformation (stress–strain and fracture). Representative volume element model is the most popular homogenization-based multi-scale constitutive method used in the finite element method to investigate the effect of microstructures on the mechanical and thermal properties of natural fibers and natural fiber reinforced composites. The representative volume element models of natural fibers and natural fiber reinforced composites at various length scales are discussed, including two types of geometrical modeling methods, the computer-based modeling method and the image-based modeling method. Their modeling efficiency and accuracy are also discussed.

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A new approach for prediction of elastic modulus of polymer/nanoclay composites by considering interfacial debonding: Experimental and numerical investigations

Cited by 46 publications

References 43 publications

Simulation of dynamic mechanical and viscoelastic behavior in polymer/clay nanocomposites

Simulation of dynamic mechanical and viscoelastic behavior in polymer/clay nanocomposites

Processing and characterization of UHMWPE composite fibres with alumina particles in poly(ethylene-vinyl acetate) matrix

Finite element models of natural fibers and their composites: A review

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