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Issue 5, 2019
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Crack propagation in graphene monolayer under tear loading

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Abstract

Crack propagation in graphene monolayer under tear loading is investigated via an energy-based analytical model and molecular dynamics (MD) simulations. The classical mechanics-based model describes steady-state crack propagation velocity as a function of applied stress, lateral dimension and loading geometry, as well as the critical stress and critical size for initiating steady crack propagation. MD simulations reveal that cracks propagate along the zigzag direction but yield different “fracture surface” roughnesses for different loading geometries. MD simulations and the predictions of the analytical model are in excellent agreement. Our findings lead to an improved fundamental understanding of the mode-III crack of monolayer graphene necessary for the design and fabrication of graphene-based devices.

Graphical abstract: Crack propagation in graphene monolayer under tear loading

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Publication details

The article was received on 06 Dec 2018, accepted on 04 Jan 2019 and first published on 04 Jan 2019


Article type: Paper
DOI: 10.1039/C8CP07477A
Phys. Chem. Chem. Phys., 2019,21, 2659-2664

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    Crack propagation in graphene monolayer under tear loading

    S. Ye, Y. Cai, X. Liu, X. Yao and S. Luo, Phys. Chem. Chem. Phys., 2019, 21, 2659
    DOI: 10.1039/C8CP07477A

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