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Title :二重周期弾性場の有限要素表面波分散解析
Title alternative :FE-Based Surface Elastic Wave Analysis of a Two-Dimensional Periodic Half-Space
Authors :阿部, 和久
荒木, 聡秀
紅露, 一寛
Publisher :土木学会
Issue Date :Aug-2011
Journal Title :土木学会論文集A2(応用力学)
Volume :67
Issue :2
Start Page :I_905
End Page :I_913
Abstract :This paper presents a numerical method for surface elastic waves in a half-space possessing a two-dimensional periodicity. The solution is expressed by plane waves in the vertical direction, while it is approximated by finite elements in the horizontal plane. By virtue of the Bloch's theorem, the problem is reduced to equations of motion in a unit cell. The vertical wavenumbers satisfying the equations in the unit cell are determined by solving an eigenvalue problem with respect to the wavenumbers. As numerical examples, periodic arrays of piles embedded in a ground are analyzed. In the analyses piles made of concrete and a soft material are considered with arrangements given by the square and the triangular honeycomb lattices. Under these conditions, the influences of the stiffness and the lattice pattern of piles on the band structure are investigated.
Keywords :surface elastic wave
periodic structure
array of piles
Type Local :学術雑誌論文
Language :jpn
Format :application/pdf
URI :http://hdl.handle.net/10191/24743
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/24743/1/67_2_905-913.pdf
Relation :https://www.jstage.jst.go.jp/article/jscejam/67/2/67_2_I_905/_pdf
Rights :公益社団法人土木学会
Appears in Collections:10 査読済論文 = Postprint

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/24743