Effect of nanofiller geometry on the energy absorption capability of coiled carbon nanotube composite material

Yousefi, Ensieh; Sheidaei, Azadeh; Mahdavi, Mostafa; Baniassadi, Majid; Baghani, Mostafa; Faraji, Ghader

doi:10.1016/j.compscitech.2017.10.025

Cited by 30 publications

(14 citation statements)

References 54 publications

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“…Using the cohesive zone model (See Appendix 1) is a standard method to investigate the debonding propagation between reinforcement and matrix by considering all micro-mechanical details occurring during load transfer and debonding. [24][25][26][27] One of the primary aspects of the cohesive zone model is traction -separation relationship across fracture surfaces. 28 In this paper, cohesive surfaces were used, which is implemented in ABAQUS to model the interface between both CNT/epoxy nanocomposite and CF/epoxy composite.…”

Section: Cohesive Zone Modelingmentioning

confidence: 99%

Numerical analysis of cracked aluminum plate repaired with multi-scale reinforcement composite patches

Yousefi

Mashhadi

Safarabadi

2020

Journal of Composite Materials

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In this study, numerical modeling is used to investigate the performance of a single-sided composite patch with different scale fillers, as reinforcement of a cracked aluminum plate under static tension. The main concerns of previous studies are about the geometry of patches, composite layups, and failure of adhesive. In this research, the effect of patch properties such as size and fiber volume fraction, the thickness of patch, and thickness of adhesive on the overall performance of the cracked aluminum plate are investigated numerically. Indeed, first, a 3 D representative volume element (RVE) is adopted to calculate the mechanical properties of carbon nanotube (CNT)/epoxy and carbon fiber (CF)/epoxy composite patch at each specified volume fraction for investigating the effect of patch properties on the performance of a single-sided patch for crack repairing. In this regard, the cohesive zone model is adopted to analyze the debonding between the epoxy matrix and reinforcement to characterize the mechanical properties of composite patches. Finally, a linear 3 D finite element analysis is performed to calculate the stress intensity factor (SIF) for cracked aluminum plate repaired by a single-sided composite patch at each specified reinforcement volume fraction for different thickness of patch and different thickness of adhesive. The results demonstrated that the stress intensity factor highly depends on the patch properties (patch stiffness) in addition to patch thickness and adhesive thickness.

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Section: Cohesive Zone Modelingmentioning

confidence: 99%

Numerical analysis of cracked aluminum plate repaired with multi-scale reinforcement composite patches

Yousefi

Mashhadi

Safarabadi

2020

Journal of Composite Materials

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“…This kind of multiscale approach was also presented and utilized in refs. [112][113][114][115][116][117][118].…”

Section: Multiscale Modelingmentioning

confidence: 99%

The recent progress of functionally graded CNT reinforced composites and structures

Liew

Pan

Zhang

2019

Sci. China Phys. Mech. Astron.

151

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In the last decade, the functionally graded carbon nanotube reinforced composites (FG-CNTRCs) have attracted considerable interest due to their excellent mechanical properties, and the structures made of FG-CNTRCs have found broad potential applications in aerospace, civil and ocean engineering, automotive industry, and smart structures. Here we review the literature regarding the mechanical analysis of bulk CNTR nanocomposites and FG-CNTRC structures, aiming to provide a clear picture of the mechanical modeling and properties of FG-CNTRCs as well as their composite structures. The review is organized as follows: (1) a brief introduction to the functionally graded materials (FGM), CNTRCs and FG-CNTRCs; (2) a literature review of the mechanical modeling methodologies and properties of bulk CNTRCs; (3) a detailed discussion on the mechanical behaviors of FG-CNTRCs; and (4) conclusions together with a suggestion of future research trends. functionally graded carbon nanotube reinforced composite, modeling methodology, mechanical properties, beam, plate, shell

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“…Over the past decades, carbon-based materials such as graphene and carbon nanotubes (CNTs) have attracted a great deal of interest in different fields of nanoscience and nanotechnology because of their unique combination of thermal, mechanical, and electrical properties. − Their distinctive properties have triggered intensive studies into a wide variety of applications. They can now be used in nanoelectronic devices, − biological sensors, ,, nanoswitches, − nanocomposites, , and nanoelectromechanical devices. ,, Particularly, coiled CNTs (CCNTs) and graphene helicoids (GHs) are greatly used in fabricating artificially new structures because of their fantastic properties and unique morphology. − CCNT fibers acting as ideal nanosprings are utilized to store and release energy because of their helical 3D structure. Considering the miniaturization mission of nanotechnology, CCNT is a major candidate for a new formation of electrical and mechanical nanodevices.…”

Section: Introductionmentioning

confidence: 99%

Insight into Geometry-Controlled Mechanical Properties of Spiral Carbon-Based Nanostructures

Sharifian

Baghani

et al. 2019

J. Phys. Chem. C

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The spiral structures of carbon-based materials such as coiled carbon nanotube (CCNT) and graphene helicoid have attracted great attention for use in electrical and mechanical nanodevices. There are a couple of main reasons for this attitude such as striking properties and behavioral diversity with regard to the ever-increasing need for miniaturization of devices. In this research, using atomistic simulations, the effects of geometric parameters (e.g., cross-sectional shape, pitch angle, inner diameter, and outer diameter) on the mechanical properties of CCNT are studied. Interestingly, the results show that the mechanical properties (e.g., Young’s modulus, stretchability, etc.) have a heavy reliance on CCNTs’ geometric parameters. The stretching of the CCNT increases with the raising inner radius. Geometric changes affect the various stages that the CCNTs encounter during tensile and compression tests. The different mechanical behavior of various types of CCNTs leads to their diverse applications. Thus, these results can give an insight to design and develop new-generation nanodevices.

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Effect of nanofiller geometry on the energy absorption capability of coiled carbon nanotube composite material

Cited by 30 publications

References 54 publications

Numerical analysis of cracked aluminum plate repaired with multi-scale reinforcement composite patches

Numerical analysis of cracked aluminum plate repaired with multi-scale reinforcement composite patches

The recent progress of functionally graded CNT reinforced composites and structures

Insight into Geometry-Controlled Mechanical Properties of Spiral Carbon-Based Nanostructures

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