Three-dimensional micromechanical analysis of the CNT waviness influence on the mechanical properties of polymer nanocomposites

Ansari, R.; Hassanzadeh-Aghdam, Mohammad Kazem; Mahmoodi, Mohammad Javad

doi:10.1007/s00707-016-1666-6

Cited by 41 publications

(21 citation statements)

References 45 publications

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“…Polymer nanocomposites embedded with nanoparticles such as CNTs, graphene and their derivatives, nanoclays, and silica nanoparticles have attracted a large amount of attention to achieve more improved thermomechanical properties than conventional composites . Among all others, CNTs have been emerged as the ideal candidates for multifarious applications due to their remarkable thermoelastic and physical properties.…”

Section: Resultsmentioning

confidence: 99%

Review on micromechanics of nano‐ and micro‐fiber reinforced composites

Kundalwal

2017

Polymer Composites

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This article deals with the prediction of thermomechanical properties of fiber reinforced composites using several micromechanics models. These include strength of material approach, Halpin-Tsai equations, multi-phase mechanics of materials approaches, multiphase Mori-Tanaka models, composite cylindrical assemblage model, Voigt-Reuss models, modified mixture rule, Cox model, effective medium approach and method of cells. Several composite systems reinforced with short and long, aligned, random and wavy reinforcements were considered. In addition, different aspects such as fiber-matrix interphase, fiber-matrix interfacial thermal resistance, fiber geometry, and multiple types of reinforcements were considered to model the composites systems. The current study also presents some important preliminary concepts and application of developed micromechanics models to advanced nanocomposites such as carbon nanotube reinforced composite. Main contribution of the current work is the investigation of several analytical micromechanical models, while most of the existing studies on the subject deal with only one or two approaches considering few aspects. POLYM. COMPOS., 00:000-000, 2017.

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Section: Resultsmentioning

confidence: 99%

Review on micromechanics of nano‐ and micro‐fiber reinforced composites

Kundalwal

2017

Polymer Composites

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“…Generally, unit cell-based micromechanical models assume regular fiber arrangement. 30,32,38,39 Figure 1 illustrates the RVE of the MMC, which consists of three phases, including unidirectional SiC fiber, Ti matrix, and the interphase layer between the fiber and matrix. The selected RVE consists of 3 × 3×1 rectangular sub-cells in which L h , L c , and L r are the lengths of RVE in the z, x , and y directions, respectively.…”

Section: Geometry Of the Modelmentioning

confidence: 99%

Interphase region effect on the biaxial yielding envelope of SiC fiber-reinforced Ti matrix composites

Hassanzadeh-Aghdam

Edalatpanah

Azaripour

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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The objective of this paper is to investigate the coupled effects of interphase and thermal residual stress on the biaxial initial yield surfaces of metal matrix composites using the simplified unit cell micromechanical model. The representative volume element of the composite consists of three phases, including unidirectional silicon carbide (SiC) fiber, titanium (Ti) matrix, and the interphase region between the fiber and matrix. It is found that the interphase slightly affects the initial yield surfaces of metal matrix composites without thermal residual stress. However, the results reveal that as the thermal residual stress is considered in the micromechanical modeling, the effect of interphase on the response of metal matrix composites becomes much more significant. The effects of the SiC volume fraction, interphase parameters including thickness and material properties on the yielding behavior of the metal matrix composites are examined. To demonstrate the validity of the model, comparisons are carried out between the results of the present model and other micromechanical methods as well as experiment. The extracted results could be useful to guide the modeling and design of a wide range of multiphase metal matrix composites.

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“…For these reasons, the simulation techniques including micromechanical analytical (Baxter and Robinson, 2011; Cannillo et al, 2006; Ji et al, 2010; Kundalwal and Meguid, 2015; Nafar Dastgerdi et al, 2013; Odegard et al, 2005; Ray and Kundalwal, 2014; Snipes et al, 2011; Sun et al, 2011) and finite element (Kulkarni et al, 2010; Kundalwal and Ray, 2012; Lusti and Gusev, 2004; Sun et al, 2011; Wang et al, 2005) methods are proposed to predict the material properties of polymer nanocomposites. In the category of unit cell micromechanics models, method of cell (MOC) (Dhala and Ray, 2015; Hassanzadeh-Aghdam et al, 2017; Lusti and Gusev, 2004), generalized method of cell (GMG) (Baxter and Robinson, 2011; Fralick et al, 2012; Snipes et al, 2011), and simplified unit cell (SUC) (Ansari et al, 2016a; Ansari and Hassanzadeh-Aghdam, 2016a, 2016b; Falahatgar et al, 2009; Hassanzadeh-Aghdam et al, 2018) have been successfully used to determine the mechanical and thermal properties of nanocomposite materials.…”

Section: Introductionmentioning

confidence: 99%

Effects of added SiO₂ nanoparticles on the thermal expansion behavior of shape memory polymer nanocomposites

Mahmoodi

Hassanzadeh-Aghdam

Ansari

2018

Journal of Intelligent Material Systems and Structures

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In this study, a unit cell–based micromechanical approach is proposed to analyze the coefficient of thermal expansion of shape memory polymer nanocomposites containing SiO2 nanoparticles. The interphase region created due to the interaction between the SiO2 nanoparticles and shape memory polymer is modeled as the third phase in the nanocomposite representative volume element. The influences of the temperature, volume fraction, and diameter of the SiO2 nanoparticles on the thermal expansion behavior of shape memory polymer nanocomposite are explored. It is observed that the coefficient of thermal expansion of shape memory polymer nanocomposite decreases with the increase in the volume fraction up to 12%. Also, the results reveal that with the increase in temperature, the shape memory polymer nanocomposite coefficient of thermal expansion linearly increases. The role of interphase region on the thermal expansion response of the shape memory polymer nanocomposite is found to be very important. In the presence of interphase, the reduction in nanoparticle diameter leads to lower coefficient of thermal expansion for shape memory polymer nanocomposite, while the variation of nanoparticles diameter does not affect the coefficient of thermal expansion in the absence of interphase. Based on the simulation results, the shape memory polymer nanocomposite coefficient of thermal expansion decreases as the interphase thickness increases. In addition, the contribution of interphase coefficient of thermal expansion to the shape memory polymer nanocomposite coefficient of thermal expansion is more significant than that of interphase elastic modulus.

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Three-dimensional micromechanical analysis of the CNT waviness influence on the mechanical properties of polymer nanocomposites

Cited by 41 publications

References 45 publications

Review on micromechanics of nano‐ and micro‐fiber reinforced composites

Review on micromechanics of nano‐ and micro‐fiber reinforced composites

Interphase region effect on the biaxial yielding envelope of SiC fiber-reinforced Ti matrix composites

Effects of added SiO₂ nanoparticles on the thermal expansion behavior of shape memory polymer nanocomposites

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Three-dimensional micromechanical analysis of the CNT waviness influence on the mechanical properties of polymer nanocomposites

Cited by 41 publications

References 45 publications

Review on micromechanics of nano‐ and micro‐fiber reinforced composites

Review on micromechanics of nano‐ and micro‐fiber reinforced composites

Interphase region effect on the biaxial yielding envelope of SiC fiber-reinforced Ti matrix composites

Effects of added SiO2 nanoparticles on the thermal expansion behavior of shape memory polymer nanocomposites

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Product

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Effects of added SiO₂ nanoparticles on the thermal expansion behavior of shape memory polymer nanocomposites