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Mechanics of Thin-Walled Structures and Other Lightweight Constructions (Second Edition)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Construction and Building Materials".

Deadline for manuscript submissions: 20 April 2026 | Viewed by 455

Special Issue Editor


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Guest Editor
Department of Aerospace Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel
Interests: stability of thin-walled structures; static and dynamic behavior of thin-walled structures; smart structures; piezoelectric materials; shape memory materials
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Special Issue Information

Dear Colleagues,

The topic for this Special Issue is “Mechanics of Thin-Walled Structures and Other Lightweight Constructions.” Thin-walled and lightweight structures must meet operational demands and ensure safety within a minimal weight range. Typical structures would be made of thin skins, frames, stiffeners, and spars, all made of high-strength and high-stiffness materials to comply with the desired minimal weight criteria. Although this topic has been extensively discussed in the literature, new and innovative studies on non-linear behavior rather than linear behavior have become increasingly present.

The second editor of this Special Issue topic aims to provide a new platform for recent studies on the structural behavior of thin-walled and lightweight structures in their linear and non-linear regimes.

These studies can present those structures' static and dynamic behavior, highlighting new numerical methods, finite element solutions, and experimental results.

Prof. Dr. Haim Abramovich
Guest Editor

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Keywords

  • thin-walled structures
  • lightweight construction
  • sandwich panels
  • fiber-reinforced polymer composite
  • beams
  • plates
  • panels
  • numerical analysis
  • experiments
  • displacements
  • stresses
  • boundary conditions
  • linear behavior
  • non-linear behavior

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Published Papers (1 paper)

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Research

28 pages, 6384 KB  
Article
The Elastic Critical Moment of Lateral Torsional Buckling of Steel Beams with Spatially Elastically Restrained at the Support Nodes
by Rafał Piotrowski and Andrzej Szychowski
Materials 2026, 19(1), 120; https://doi.org/10.3390/ma19010120 - 29 Dec 2025
Viewed by 281
Abstract
This paper presents the results of a further stage of the authors’ research into the lateral torsional buckling of hot-rolled bisymmetric I-beams, spatially elastically restrained at the support nodes, i.e., against: (1) warping, (2) rotation in the lateral torsional buckling plane and (3) [...] Read more.
This paper presents the results of a further stage of the authors’ research into the lateral torsional buckling of hot-rolled bisymmetric I-beams, spatially elastically restrained at the support nodes, i.e., against: (1) warping, (2) rotation in the lateral torsional buckling plane and (3) rotation in the main bending plane My. The analysis considered the entire range of variation in node stiffness, from free support in bending My and full freedom of warping and rotation in the lateral torsional buckling plane, to full restraint of the beam at the nodes. The authors introduced a general approximation formula (AF) for the critical moment of lateral torsional buckling Mcr, simultaneously considering the three elastic fixity indexes for basic and frequently occurring loading schemes in engineering practice. In order to facilitate the calculations, the authors have included the full sequence of formulas for the successive components of the critical moment, derived in the authors’ previous papers. The ability to more accurately consider the actual conditions of the spatial elastic restraint of the beam at the nodes leads to a more accurate calculation of Mcr. The results obtained were compared with FEM (LTBeamN software, v. 1.0.3) by performing a large number of calculations and numerical simulations. The agreement of the AF/FEM results was achieved at a level sufficient from the engineering point of view (mean value 1.006, standard deviation 0.028, coefficient of variation 2.8%). Detailed calculations were carried out for different section types (I, H) and different combinations of fixity index values. The application of approximation formulas in practical calculations is demonstrated on an example. The formulas derived in the paper can be used, among other things, to verify the correctness of FEM calculations, including the correct modelling of elastic support restraints, which is important in design practice. Full article
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