Investigation of carbon nanosprings with the tunable mechanical properties controlled by the defect distribution

Bie, Zhiwu; Liu, Xuefeng; Tao, Jixiao; Zhu, Jiaqi; Yang, Dong; He, Xiaoqiao

doi:10.1016/j.carbon.2021.04.035

“…As shown in Figure 2, six defected CCNTs are built by periodically introducing the SW and vacancy defects in the different positions of CNT segments. Since the previous studies found that the stress is mainly concentrated at the inner edge of the CCNTs [21,23], the defects are only arranged near the inner edge. According to the relative position of SW defects and the essential heptagon defects in the inner edge of CNT segments, the defects in the middle of two adjacent heptagon defects are identified as the first type SW defects (i.e., (2,3,7,1)/sw1), as shown in Figure 2b.…”

Section: Molecular Models and Methodsmentioning

confidence: 93%

“…Furthermore, Wu et al [22] constructed entwined coiled carbon structures with single-to triple-helix, and the increase in the number of entwined helices caused the increase in stiffness. Bie et al [23] investigated the tunable mechanical properties of CCNTs with different defect positions and geometries through three different construction procedures. Besides using MD methods, Ghaderi et al [24] used the molecular structural mechanics method through finite element code to obtain the mechanical properties of CCNTs, and the results showed that both the spring constants and shear modulus increased along with the increase of the diameter of CNT segments.…”

Section: Introductionmentioning

confidence: 99%

The Controllable Mechanical Properties of Coiled Carbon Nanotubes with Stone–Wales and Vacancy Defects

Bie

¹

,

Deng

²

,

Liu

³

et al. 2023

Nanomaterials

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…44 Recently, it has been demonstrated that, when trained using machine learning, GAP could simulate the thermal and mechanical properties of pristine and defective carbon. 42,45 Especially, AIREBO has been widely used to study the thermal and mechanical properties of carbon-based materials, [46][47][48][49][50][51] and the obtained results are reasonable and widely acknowledged. Furthermore, it is wellknown that, in molecular dynamics simulations, the simulated results obtained using different potentials are slightly different.…”

Section: Force Eldmentioning

confidence: 99%

Mechanical and thermal properties of carbon nanotubes in carbon nanotube fibers under tension–torsion loading

Niu

¹

,

Cui

²

,

Tian

³

et al. 2022

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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On the nature of constitutive boundary and interface conditions in stress-driven nonlocal integral model for nanobeams

Song¹,

Lai²,

Lim³

2025

Applied Mathematical Modelling

1

0

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

Investigation of carbon nanosprings with the tunable mechanical properties controlled by the defect distribution

Cited by 12 publications

References 50 publications

The Controllable Mechanical Properties of Coiled Carbon Nanotubes with Stone–Wales and Vacancy Defects

The Controllable Mechanical Properties of Coiled Carbon Nanotubes with Stone–Wales and Vacancy Defects

Mechanical and thermal properties of carbon nanotubes in carbon nanotube fibers under tension–torsion loading

On the nature of constitutive boundary and interface conditions in stress-driven nonlocal integral model for nanobeams

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