Condensed hyperelements method of non-vertical consistent boundaries for wave propagation analysis in irregular media

S. Dorafshan, F. Behnamfar, A. Khamesipour, M. Motosaka

    研究成果: Article査読

    2 被引用数 (Scopus)

    抄録

    The study of wave propagation in finite/infinite media has many applications in geotechnical and structural earthquake engineering and has been a focus of research for the past few decades. This paper presents an analysis of 2D antiplane problems (Love waves) and 2D in-plane problems (Rayleigh waves) in the frequency domain in media consisting of a near-field irregular and a far-field regular part. The near field part may contain structures and its boundaries with the far-field can be of any shape. In this study, the irregular boundaries of the near-field are treated as consistent boundaries, extending the concept of Lysmer's vertical consistent boundaries. The presented technique is called the Condensed Hyperelements Method (CHM). In this method, the irregular boundary is limited to a vertical boundary at each end that is a consistent boundary at the far-field side. Between the two ends, the medium is discretized with hyperelements. Using static condensation, the stiffness matrix of the far-field is derived for the nodes on the irregular boundary. Examples of the application of the CHM illustrate its excellent accuracy and efficiency.

    本文言語English
    ページ(範囲)547-559
    ページ数13
    ジャーナルEarthquake Engineering and Engineering Vibration
    12
    4
    DOI
    出版ステータスPublished - 2013 12月 23

    ASJC Scopus subject areas

    • 土木構造工学
    • 建築および建設
    • 地盤工学および土木地質学
    • 機械工学

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