Molecular dynamics study on the crack propagation in carbon doped polycrystalline boron-nitride nanosheets
Jam, Amir Namazian 1Jam, Negin Namazian 2Izadifar, Mohammadreza 3Rabczuk, Timon4
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作者信息
1. Bauhaus Univ Weimar
2. Tech Univ Dresden TUD
3. Tech Univ Darmstadt
4. Ton Duc Thang Univ
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Abstract
In this paper, we carried out molecular dynamic (MD) simulations to study the crack growth and its effects on the mechanical properties of carbon doped polycrystalline boron-nitride nanosheets. We also quantified the influence of the grain and crack size on the mechanical responses. Therefore, models of polycrystalline carbon-doped h-BN with primary center crack are tested. In the models with bigger cracks, we observe a linear hardening until fracture occurs completely. Furthermore, the crack propagation speed during the fracture process is measured.
NSTL
Elsevier