Geometrically nonlinear analysis of layered beams using symbolic approach

Rodman, Urban (author), Zupan, Dejan (author), Šuštar, Tomaž (author), Korelc, Jože (author)

This study presents a novel layered spatial beam model with discrete connections between layers, developed to accurately capture large displacements and rotations as well as finite strains. The formulation is characterized by simplicity, robustness and compatibility with automatic code generation, making it suitable for various applications. Key features of the model include the use of a piecewise constant strain field, the inclusion of discrete unknowns such as strains and stress resultants, and the efficient numerical implementation using the automatic code generation. The discrete connections between the layers of the model enable an efficient description of the interlaminar behaviour and the consideration of nonlinear constitutive properties. Numerical examples demonstrate the effectiveness and accuracy of the proposed approach and illustrate its potential for practical engineering applications.

• Language: English
• Keywords: layered spatial beam, discrete connections, large displacements, automatic code generation, piecewise constant strain field, numerical implementation
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: Str. 1-13
• Numbering: Vol. 351, art. 118583
• UDC: 519.62
• ISSN on article: 1879-1085
• DOI: 10.1016/j.compstruct.2024.118583
• COBISS.SI-ID: 212752899
• Publication date in RUL: 24.10.2024

Record is a part of a journal

• Title: Composite structures
• Shortened title: Compos. struct.
• Publisher: Elsevier
• ISSN: 1879-1085
• COBISS.SI-ID: 19024387

Licences

• License: CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
• Link: http://creativecommons.org/licenses/by-nc/4.0/
• Description: A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.

Secondary language

• Language: Slovenian
• Keywords: slojeviti nosilci, diskretne vezi, veliki pomiki, samodejno generiranje kode, odsekoma konstantne deformacije, numerična implementacija

Projects

• Funder: EC - European Commission
• Funding programme: H2020 Marie Skłodowska-Curie
• Project number: 860124
• Name: Joint Training on Numerical Modelling of Highly Flexible Structures for Industrial Applications
• Acronym: THREAD