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

doi:10.1080/15376494.2022.2103859

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

Department of Energy and Mechanical Engineering

Tallinn University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

5 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 language	English
Pages (from-to)	4698-4710
Number of pages	13
Journal	Mechanics of Advanced Materials and Structures
Volume	30
Issue number	22
Early online date	20 Jul 2022
DOIs	https://doi.org/10.1080/15376494.2022.2103859
Publication status	Published - 2023
MoE publication type	A1 Journal article-refereed

Funding

This research work was financed by the Estonian Research Council via grant PRG83 (Numerical simulation of the FSI for the dynamic loads and response of ships). This help is gratefully appreciated.

Keywords

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

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10.1080/15376494.2022.2103859Licence: CC BY-NC-ND

Toward the application of the layer wise displacement theory in passenger ships a quasi static responseFinal published version, 3.38 MBLicence: CC BY-NC-ND

Cite this

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

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.",

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AU - Tabri, Kristjan

AU - Romanoff, Jani

N1 - Funding Information: This research work was financed by the Estonian Research Council via grant PRG83 (Numerical simulation of the FSI for the dynamic loads and response of ships). This help is gratefully appreciated. Publisher Copyright: © 2022 The Author(s). Published with license by Taylor and Francis Group, LLC.

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AB - 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.

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KW - Quasi-static structural response

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ER -

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

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Keywords

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