Nonlinear reduced order modeling of isotropic and functionally graded plates

Kwangkeun Kim, Adrian G. Radu, X. Q. Wang, Marc Mignolet

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

The focus of this investigation is on the development and validation of non-linear structural dynamic reduced order models of structures undergoing large deformations, with particular emphasis on aircraft panels. Significant efforts are devoted to the formulation and assessment of "dual modes" which when combined with the linear transverse modes form an excellent basis for the representation of the displacement and stress fields in the reduced order model. This task is first successfully achieved for isotropic/symmetric composite structures and then extended to asymmetric and functionally graded ones. Examples of application are presented that demonstrate the high accuracy of the proposed reduced order models as compared to full finite element preditions, even with a small number of modes.

Original languageEnglish (US)
Pages (from-to)100-110
Number of pages11
JournalInternational Journal of Non-Linear Mechanics
Volume49
DOIs
StatePublished - Jan 1 2013

Keywords

  • Large displacements
  • Non-linear geometric
  • Plates
  • ROM
  • Reduced order models

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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