arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.07280cond-mat.mtrl-sci
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基于粗粒键力的单层石墨烯的周晶模型

Peridynamic Model for Single-Layer Graphene Obtained from Coarse Grained Bond Forces

Stewart A. Silling, Marta D'Elia, Yue Yu, Huaiqian You, Muge Fermen-Coker

摘要:

提出了一种基于普通态的单层石墨烯的周晶材料模型。使用粗粒度分子动力学模拟校准模型。粗粒化方法允许键合力对键长的依赖性被确定,包括地平线。的peridendicic模型允许地平线被重新缩放,提供了一个多尺度的能力,并允许大幅减少计算成本相比,分子动力学。校准的peridadicic模型进行比较,通过原子力显微镜探针的石墨烯单层的偏转和穿孔的实验数据。

英文摘要:

An ordinary state-based peridynamic material model is proposed for single sheet graphene. The model is calibrated using coarse grained molecular dynamics simulations. The coarse graining method allows the dependence of bond force on bond length to be determined, including the horizon. The peridynamic model allows the horizon to be rescaled, providing a multiscale capability and allowing for substantial reductions in computational cost compared with molecular dynamics. The calibrated peridynamic model is compared to experimental data on the deflection and perforation of a graphene monolayer by an atomic force microscope probe.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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