@article{oai:niigata-u.repo.nii.ac.jp:00002833,
 author = {阿部, 和久 and 中山, 悠 and 紅露, 一寛},
 journal = {応用力学論文集, 応用力学論文集},
 month = {Aug},
 note = {Elastic wave propagation is analyzed for periodic composites with a layer possessing different periodicity. To achieve this, a numerical method is developed based on the finite element approach. The problem under consideration is stated in the context of the equation of motion for a repetitive unit of the layer. For that sub-region, unknowns on the lower and upper boundaries are described by the aid of impedance matrices. The impedance matrix of a periodic half-plane is composed of eigenvectors of the transfer matrix of a unit cell representing the periodicity. The method is applied to the transmission of incident waves through the periodic layer consisting of a matrix and circular inclusions with square arrangement. It is found that the composite layer with only a few stories can exhibit the stopband at some frequencies. The band structure of the layer can be deduced precisely by dispersion analysis of an infinite field having the identical periodicity of the layer.},
 pages = {1041--1048},
 title = {中間層を有する周期複合材の弾性波動解析},
 volume = {13},
 year = {2010}
}