Multi-scale modeling of carbon nanotube reinforced composites with a fiber break

Kirtania, Sushen; Chakraborty, Debabrata

doi:10.1016/j.matdes.2011.09.041

Cited by 10 publications

(8 citation statements)

References 25 publications

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“…The trends of the distribution of ANS in the broken fiber as well as in the adjacent intact fiber in CNT/ Al 2 O 3 nanocomposites studied in the present work are also similar to the distribution of ANS in conventional carbon-fiber/epoxy composites as reported by Nedele and Wisnom. 24 Results from the present study show that the magnitudes of ISS near the fiber break do not show much variation with the change in volume fractions, even though earlier result 18 showed a significant variation in magnitudes of ISS with volume fraction for both the CNT/epoxy and CNT/titanium. This study also revealed that the ineffective length of the broken CNT in CNT/Al 2 O 3 nanocomposites is much lesser compared to that reported for CNT/epoxy nanocomposites.…”

Section: Effective Young's Modulus Of Cnt-reinforced Alumina Matrix Nanocompositescontrasting

confidence: 57%

“…The formations of different types of SWCNTs by rolling one hexagonal graphene sheet have also been presented by Kirtania and Chakraborty. 18 Figure 1 …”

Section: Atomic Arrangement Of Cntsmentioning

confidence: 99%

“…This study also revealed that the ineffective length of the broken CNT in CNT/Al 2 O 3 nanocomposites is much lesser compared to that reported for CNT/epoxy nanocomposites. 18 Conclusions A full 3D multi-scale FE analysis has been performed first to estimate the Young's modulus of the CNT/ Al 2 O 3 nanocomposites and then to study the stress redistribution around a broken CNT to assess the chances of fiber fracture or debonding. Some of the important conclusions drawn from the present study are as follow:…”

Section: Distribution Of Stresses In Cnt-reinforced Alumina Nanocompomentioning

confidence: 99%

“…Tserpes et al 17 proposed a multi-scale RVE for modeling the tensile behavior of CNT-reinforced composites. Kirtania and Chakraborty 18 analyzed the stress redistribution in the vicinity of a broken CNT in CNT/epoxy and CNT/titanium composites using a multi-scale RVE. Belytschko et al 19 studied the fracture behavior of isolated CNT on the nano scale.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of carbon nanotube-reinforced alumina matrix nanocomposites with a broken fiber

Kirtania

Chakraborty

2013

Journal of Reinforced Plastics and Composites

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Multi-scale finite element analysis has been performed for determination of longitudinal and transverse Young's moduli of carbon nanotube (CNT)-reinforced alumina matrix nanocomposites considering a square representative volume element (RVE). The square RVE has been used to simulate the stress redistribution around a broken CNT at the interface of CNT and matrix, and ineffective length of the broken CNT has been determined. It has been observed that ineffective length of the broken CNT does not show sufficient dependence on the volume fraction. It is also been observed that high magnitude of interfacial shear stress around the broken CNT exists indicating the chances of fiber debonding.

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Section: Effective Young's Modulus Of Cnt-reinforced Alumina Matrix Nanocompositescontrasting

confidence: 57%

“…The formations of different types of SWCNTs by rolling one hexagonal graphene sheet have also been presented by Kirtania and Chakraborty. 18 Figure 1 …”

Section: Atomic Arrangement Of Cntsmentioning

confidence: 99%

Section: Distribution Of Stresses In Cnt-reinforced Alumina Nanocompomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of carbon nanotube-reinforced alumina matrix nanocomposites with a broken fiber

Kirtania

Chakraborty

2013

Journal of Reinforced Plastics and Composites

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“…When carbon fibers are used in polymers, advanced polymer composites are created with all of the advantages relative to conventional metallic materials. As a result, carbon fiber-reinforced plastics are widely used in automobile and aircraft industries [32,33]. If the composites are used together with metals, the hybrid material combines the excellent specific strength, stiffness, and fatigue properties of composites with the superior machinability and toughness of metals.…”

Section: Report Outlinementioning

confidence: 99%

Interfacial properties in the CFRP and CFRP-Ti composites under hygrothermal conditions

Yu¹

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Carbon fiber-reinforced plastic (CFRP) based composite riser integrated with titanium liner (namely CFRP-Ti composite riser) is a promising choice for deep-water oil exploration and production to replace conventional metal risers due to its various advantages including lightweight, high specific strength and stiffness, and outstanding corrosion resistance, etc. In achieving optimal performance of this hybrid composite system, interfaces in the composite system play a critical role, which include fiber-matrix interface, interlaminar interface, and metal-composite interface (MCI). Therefore, good tuning of these interfaces determines overall performance of the hybrid composite system. To improve the interfacial properties of the CFRP-Ti composites, two different strategies have been adopted in this work: i) modification of the interfaces in CFRPs and ii) tuning of the MCI via surface treatment of titanium alloy. Multiwalled carbon nanotubes (MWCNTs) are incorporated into silane coating and applied onto carbon fiber surface to enhance the interfacial bonding in CFRPs. The results of microbond tests show that the interfacial shear strength (IFSS) of prepared multi-scale phase reinforced composite (MPRC) can be significantly increased in comparison with that of common composite. It is observed that densification of CNTs forest within the interphase between carbon fiber and matrix during forming of nanocomposite coating can lead to a high volume fraction of CNTs within the interphase and augment effects of interface-interlocking, which makes the coating-modification method a more efficient way than traditional matrix-tuning method for improving interfacial bonding. Long-term interfacial performance of the prepared hybrid composite in III Acknowledgement I would like to express my sincere gratitude and appreciation to my supervisor, Dr. Yang Jinglei, for his guidance, patience and encouragement during my studies at NTU. The knowledge he gave and shared granted me great help not only for the past and current research work, but also for the future work. At the same time, I would also like to appreciate Dr. Jiang Zhenyu from South China University of Technology for providing me with valuable advice and supporting me to complete my work. I want to acknowledge Nanyang Technological University for the financial support and the research scholarship of this project.

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Continuum Modelling of Carbon Nanotube Composites: A Review

Omar,

Rasid,

Hassan

2023

Proceedings in Technology Transfer

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Multi-scale modeling of carbon nanotube reinforced composites with a fiber break

Cited by 10 publications

References 25 publications

Analysis of carbon nanotube-reinforced alumina matrix nanocomposites with a broken fiber

Analysis of carbon nanotube-reinforced alumina matrix nanocomposites with a broken fiber

Interfacial properties in the CFRP and CFRP-Ti composites under hygrothermal conditions

Continuum Modelling of Carbon Nanotube Composites: A Review

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