A series of multi-domain matched interface and boundary algorithms for dynamic and static responses of annular sectorial plates

Zhiwei Song, Siu Kai Lai, Wei Li, Siu Lai Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

A series of multi-domain matched interface and boundary (MDMIB) algorithms are proposed to analyze the free vibration and bending of annular sectorial thin plates. Through an in-depth understanding of the matched interface and boundary (MIB) method, six types of MDMIB algorithms are developed herein by using various domain decomposition techniques for handling bi-directional crossing interfaces due to non-homogeneous elastic foundations and discontinuous loads, which cannot be treated by the conventional MIB method. The rationale of the MDMIB method is to divide the entire computational domain into multiple subdomains that can be connected by using the interconnecting conditions between crossing interfaces and mesh lines. Annular sectorial plates, having non-uniform boundary conditions, partially supported elastic foundations, and patch loads, are all considered. Numerous examples are chosen to examine the computational performance of the MDMIB algorithms. For verification, the present results are checked against existing and finite element solutions. It is shown that the proposed MDMIB algorithms are highly effective to deal with the bi-directional interface problems.

Original languageEnglish
Article number109883
JournalThin-Walled Structures
Volume180
DOIs
Publication statusPublished - Nov 2022

Keywords

  • Annual sectorial plate
  • Bending
  • Free vibration
  • High-order finite difference
  • Multi-domain matched interface and boundary method

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering

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