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Discrete model of dislocations in fractional nonlocal elasticity

机译:分数非局部弹性位错的离散模型

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Discrete models of dislocations in fractional nonlocal materials are suggested. The proposed models are based on fractional-order differences instead of finite differences of integer orders that are usually used. The fractional differences allow us to describe long-range interactions in materials. In continuous limit the suggested discrete models give continuum models of dislocations in nonlocal continua. Fractional generalization of the Frenkel–Kontorova model by using long-range interactions is suggested. We also propose a fractional generalization of interacting atomic chains (IAC) model of dislocations by considering long-range interacting chains.
机译:建议使用离散非局部材料中位错的离散模型。所提出的模型基于分数阶差而不是通常使用的整数阶的有限差。分数差异使我们能够描述材料中的远程相互作用。在连续极限中,建议的离散模型给出了非局部连续体中位错的连续体模型。建议使用长距离相互作用对Frenkel-Kontorova模型进行分数泛化。我们还通过考虑远程相互作用链,提出了位错相互作用原子链(IAC)模型的一般化。

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