Multiscale modeling to characterize electromechanical behaviors of CNT/polymer nanocomposites considering the matrix damage and interfacial debonding

Lee, Wonseok; Chung, Ingyun; Baek, Kyungmin; Im, Sun-Young; Cho, Maenghyo

doi:10.1080/15376494.2020.1861396

Cited by 8 publications

(3 citation statements)

References 81 publications

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“…필러의 특성, 그리고 탄소계 나노 필러-모재 간 계면의 상호작 용이 지배적인 요소로 알려져 있다 (Lee et al, 2022;Yang, 2022). (Castañeda and Willis, 1995;Mori and Tanaka, 1973;Chan and Andrawes, 2010;Wu et al, 2011).…”

Section: 나노복합재료의 역학적 특성은 모재 및 혼입된 탄소계 나노unclassified

“…이를 통해 나노복합재료의 전기/역학적 특성을 예측하는 연구들이 다수 수행되고 있었다. 본 논문에 서 검토한 멀티스케일 모델링 기법은 기존의 단일 해석 기법 대비 다양한 스케일에서 발생하는 복합적인 현상을 포괄적으 로 고려할 수 있었다 (Jin et al, 2018;Lee et al, 2022;Yang et al, 2013;Yang, 2022;Ellis and McDowell, 2017;Zhu et al, 2021). 이는, 기존의 단일 해석 기법 대비 나노복합재료의 전기 /역학적 특성을 더욱 정밀하게 예측할 수 있는 기법으로 판단 된다 (Chan and Andrawes, 2010;Wu et al, 2011).…”

Section: 나노복합재료의 역학적 특성은 모재 및 혼입된 탄소계 나노unclassified

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Review of Recent Advances in the Electrical/Mechanical Characteristics of Nanocomposites and Multi-scale Modeling of Nanocomposites

Kil¹,

Bae²,

Yoon³

et al. 2023

J. Comput. Struct. Eng. Inst. Korea

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Nanocomposites have been considered innovative composite materials that have multi-functionality and high performance. Because the incorporation of nanoscale fillers may significantly improve the electrical, mechanical, and thermal properties of composites, numerous extensive studies on the characterization of nanocomposites with nanoscale fillers have been performed. In particular, the development of nanocomposites using carbon-based nanoscale fillers (e.g., carbon nanotubes, carbon black, graphene nanoplates) have attracted much interest in the composite field. This paper provides a review of recent advances in the electrical/mechanical characteristics of nanocomposites, which are essential for their practical applications. Furthermore, this paper revisits the recent research on multi-scale modeling, which is a promising approach for predicting the characteristics of nanocomposites. The current challenges and future development potentials for multi-scale modeling are also discussed.

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Section: 나노복합재료의 역학적 특성은 모재 및 혼입된 탄소계 나노unclassified

Review of Recent Advances in the Electrical/Mechanical Characteristics of Nanocomposites and Multi-scale Modeling of Nanocomposites

Kil¹,

Bae²,

Yoon³

et al. 2023

J. Comput. Struct. Eng. Inst. Korea

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“…16 Several theoretical approaches have been proposed for their ability to predict the strain-dependent electrical conductivity of nanocomposites incorporating CNTs. 15,[21][22][23][24][25][26] Haghgoo et al 22 developed a micromechanical model that considers the electron tunneling effect between neighboring CNTs as the essential feature of strain-dependent electrical conductivity. Their model demonstrated nonlinear straindependent electrical conductivity from changes in the electron tunneling resistance between CNTs.…”

Section: Introductionmentioning

confidence: 99%

A multiscale modeling framework for predicting strain‐dependent electrical conductivity of carbon nanotube‐incorporated nanocomposites considering the electron tunneling effect

Kil,

Bae,

Park

et al. 2024

Polymer Composites

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The present work proposes a multiscale modeling framework for predicting the strain‐dependent electrical conductivity of carbon nanotube (CNT)‐incorporated nanocomposites considering the electron tunneling effect. A micromechanical model taking into account the waviness of the CNTs is utilized and molecular dynamics simulations estimating changes in distance between CNTs in the polymer matrix are conducted in an attempt to incorporate the electron tunneling effect. A series of numerical parametric studies are carried out to examine the influence of model parameters (e.g., CNT length, number of CNT segments, and intrinsic interfacial resistivity) on the strain‐dependent electrical conductivity of the nanocomposites. In addition, CNT/polydimethylsiloxane samples are fabricated and their strain‐dependent electrical conductivity is experimentally evaluated. Finally, to verify the predictive capability of the proposed modeling framework, the present predictions are compared with experimental results.Highlights A multiscale modeling framework of CNT‐incorporated nanocomposites is proposed. A micromechanics model and molecular dynamics simulations are used. The study includes a numerical parametric investigation. The present predictions are compared with those obtained experimentally.

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Interfacial characterization in defective graphene/PET substrate structure through traction separation models: A molecular dynamics study

Lei

Ren

et al. 2022

Computational Materials Science

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Multiscale modeling to characterize electromechanical behaviors of CNT/polymer nanocomposites considering the matrix damage and interfacial debonding

Cited by 8 publications

References 81 publications

Review of Recent Advances in the Electrical/Mechanical Characteristics of Nanocomposites and Multi-scale Modeling of Nanocomposites

Review of Recent Advances in the Electrical/Mechanical Characteristics of Nanocomposites and Multi-scale Modeling of Nanocomposites

A multiscale modeling framework for predicting strain‐dependent electrical conductivity of carbon nanotube‐incorporated nanocomposites considering the electron tunneling effect

Interfacial characterization in defective graphene/PET substrate structure through traction separation models: A molecular dynamics study

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