Accurate Boundary Conditions for Twin Boundary

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户：feifeichongwx

【摘要】

：

【作者】

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Xi Zhu Shaoqiang Tang

【机构】

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College of Engineering,Peking University,Beijing,100871,China

【出处】

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中国计算力学大会2018暨国际华人计算力学大会2018

【发表日期】

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2018年10期

【关键词】

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Twin boundary artificial boundary condition dispersion relation reflection coeff

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　　This paper proposes an accurate boundary treatment for twin lattices.Under the framework of matching boundary conditions(MBC)that take a form of linear constraints among the displacements and velocities at atoms near the physical boundary,we capture accurately the physical reflection across the boundary.

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Accurate Boundary Conditions for Twin Boundary

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