Stress Wave Propagation in a Gradient Elastic Medium |
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作者姓名: | 赵亚薄 赵涵 等 |
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作者单位: | [1]StateKeyLaboratoryofNon-linearMechanics,InstituteofMechanics,ChineseAcademyofSciences,Beijing100080 [2]UniversityofPierreandMarieCurie,LaboratoiredeMecaniqueetTechnologie-Cachan,61A |
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摘 要: | The gradient elastic constitutive equation incorporating the second gradient of the strains is used to determine the monochromatic elastic plane wave propagation in a gradient infinite medium and thin rod.The equation of motion,together with the internal material length,has been derived.Various dispersion relations have been determined.We present explicit expressions for the relationship between various wave speeds,wavenumber and internal material length.
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关 键 词: | 弹性介质 梯度弹性介质 应力波传播 |
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