Block-diagonalization analysis of symmetric plates

Kiyohiro Ikeda, Ichiro Ario, Kunio Torii

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This paper presents a block-diagonalization method to solve stiffness equations of isotropic symmetric plates. By means of a suitable "local" coordinate transformation, chosen based on group theory, the stiffness matrix is decomposed into a block-diagonal form. The stiffness equation in the local coordinate is solved block by block, thus realizing numerical efficiency and greatly reducing the requisite amount of computer memory. The efficiency has been further upgraded with the aid of the concept of augmented orbit. This method is applied to a square isotropic plate subject to "asymmetric" loads to show its usefulness.

Original languageEnglish
Pages (from-to)2779-2793
Number of pages15
JournalInternational Journal of Solids and Structures
Issue number22
Publication statusPublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics


Dive into the research topics of 'Block-diagonalization analysis of symmetric plates'. Together they form a unique fingerprint.

Cite this