Toward the application of the layer-wise displacement theory in passenger ships—a quasi-static response

Mikk-Markus Imala*, Hendrik Naar, Kristjan Tabri, Jani Romanoff

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
64 Downloads (Pure)

Abstract

This paper introduces an application of the layer-wise displacement theory for response analysis of multilayer ship girders. Quadrilateral, 6-node finite membrane elements are used for which 8 displacement degrees of freedom at corners, and 4 shear strain degrees of freedom at mid-side nodes, are defined. This approach enables accurate estimates of the shear strain between adjacent layers with different stiffness. A simple cantilever beam, non-uniform stepped girder with constant layer stiffness, and uniform girder with varying stiffness is used in the validation analysis. An excellent agreement between the fine mesh finite element model and the proposed model is observed.

Original languageEnglish
Pages (from-to)4698-4710
Number of pages13
JournalMechanics of Advanced Materials and Structures
Volume30
Issue number22
Early online date20 Jul 2022
DOIs
Publication statusPublished - 2023
MoE publication typeA1 Journal article-refereed

Keywords

  • finite element method
  • girder analysis
  • higher-order beam theory
  • layer-wise displacement theory
  • Quasi-static structural response

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