A modified molecular-continuum model for estimating the strength and fracture toughness of graphene and carbon nanotube

Yeh, Yu Kuei; Hwu, Chyanbin

doi:10.1016/j.engfracmech.2017.03.039

Cited by 7 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[2] even differ from the data by MMC method in Ref. [3] by two orders of magnitude. Furthermore, monocrystal graphene is a kind of anisotropic 2D material.…”

Section: Mechanical Properties Of Graphenementioning

confidence: 98%

“…Results showed that the interlayer shear interaction increases the natural frequencies because of the prevention to the lateral displacements by shear forces. Molecular dynamic (MD) simulations [62] also show sp 3 bonds can reduce Young's modulus, the tensile strength and the critical fracture strain, but strengthen the interlayer shear modulus and the load transfer rate, thus making graphene sheets more stable under axial compression. simulation to study the interlayer shear effects on vibrational behavior of cantilever and bridged bilayer graphene.…”

Section: Bilayer Graphenementioning

confidence: 99%

See 1 more Smart Citation

A Review of Current Development of Graphene Mechanics

et al. 2018

View full text Add to dashboard Cite

Graphene, a two-dimensional carbon in honeycomb crystal with single-atom thickness, possesses extraordinary properties and fascinating applications. Graphene mechanics is very important, as it relates to the integrity and various nanomechanical behaviors including flexing, moving, rotating, vibrating, and even twisting of graphene. The relationship between the strain and stress plays an essential role in graphene mechanics. Strain can dramatically influence the electronic and optical properties, and could be utilized to engineering those properties. Furthermore, graphene with specific kinds of defects exhibit mechanical enhancements and thus the electronic enhancements. In this short review, we focus on the current development of graphene mechanics, including tension and compression, fracture, shearing, bending, friction, and dynamics properties of graphene from both experiments and numerical simulations. We also touch graphene derivatives, including graphane, graphone, graphyne, fluorographene, and graphene oxide, which carve some fancy mechanical properties out from graphene. Our review summarizes the current achievements of graphene mechanics, and then shows the future prospects.

show abstract

“…[2] even differ from the data by MMC method in Ref. [3] by two orders of magnitude. Furthermore, monocrystal graphene is a kind of anisotropic 2D material.…”

Section: Mechanical Properties Of Graphenementioning

confidence: 98%

Section: Bilayer Graphenementioning

confidence: 99%

A Review of Current Development of Graphene Mechanics

et al. 2018

View full text Add to dashboard Cite

show abstract

“…With this approach, Li and Chou calculated Young’s moduli and shear moduli of GSs and SWCNTs with different diameters, which were 0.85~1.05 TPa and 0.2~0.5 TPa, respectively, as shown in Figure 3 . Up to now, the approach of MSM has been widely adopted for calculating the material properties (e.g., Young’s modulus and shear modulus) of CNTs (e.g., [ 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 ]) and GSs (e.g., [ 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 ]) for mechanical analysis with continuum shell and beam models.…”

Section: Continuum Models Of Carbon Nanomaterialsmentioning

confidence: 99%

Review on Carbon Nanomaterials-Based Nano-Mass and Nano-Force Sensors by Theoretical Analysis of Vibration Behavior

Shi

Lei

Natsuki

2021

Sensors

View full text Add to dashboard Cite

Carbon nanomaterials, such as carbon nanotubes (CNTs), graphene sheets (GSs), and carbyne, are an important new class of technological materials, and have been proposed as nano-mechanical sensors because of their extremely superior mechanical, thermal, and electrical performance. The present work reviews the recent studies of carbon nanomaterials-based nano-force and nano-mass sensors using mechanical analysis of vibration behavior. The mechanism of the two kinds of frequency-based nano sensors is firstly introduced with mathematical models and expressions. Afterward, the modeling perspective of carbon nanomaterials using continuum mechanical approaches as well as the determination of their material properties matching with their continuum models are concluded. Moreover, we summarize the representative works of CNTs/GSs/carbyne-based nano-mass and nano-force sensors and overview the technology for future challenges. It is hoped that the present review can provide an insight into the application of carbon nanomaterials-based nano-mechanical sensors. Showing remarkable results, carbon nanomaterials-based nano-mass and nano-force sensors perform with a much higher sensitivity than using other traditional materials as resonators, such as silicon and ZnO. Thus, more intensive investigations of carbon nanomaterials-based nano sensors are preferred and expected.

show abstract

Molecular-continuum model for the prediction of stiffness, strength and toughness of nanomaterials

Yeh

Hwu

2017

Acta Mech

View full text Add to dashboard Cite

A modified molecular-continuum model for estimating the strength and fracture toughness of graphene and carbon nanotube

Cited by 7 publications

References 33 publications

A Review of Current Development of Graphene Mechanics

A Review of Current Development of Graphene Mechanics

Review on Carbon Nanomaterials-Based Nano-Mass and Nano-Force Sensors by Theoretical Analysis of Vibration Behavior

Molecular-continuum model for the prediction of stiffness, strength and toughness of nanomaterials

Contact Info

Product

Resources

About