Irregular lattice model for geometrically nonlinear dynamics of structures

Young Kwang Hwang, John E. Bolander, Jung Wuk Hong, Yun Mook Lim

Research output: Contribution to journalArticle

Abstract

In this study, an irregular lattice model for geometrically nonlinear analysis of structures is proposed. A conventional lattice element formulation, based on the rigid-body-spring concept, is extended to reflect geometric nonlinearity under large displacements. The large rotational behavior of each lattice cell is considered. Along with general derivation of the new lattice element formulation, an explicit solution scheme is implemented for the dynamic analysis of structures. Examples are presented to demonstrate capabilities of the proposed method for solving geometrically nonlinear problems of elastic solids. Benchmark comparisons are made with finite element solutions for both dynamic and quasi-static loading cases.

Original languageEnglish
Article number103554
JournalMechanics Research Communications
Volume107
DOIs
Publication statusPublished - 2020 Jul

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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