XFEM\GFEM based approach for topology optimization of extruded beams with enhanced buckling resistance

A Marzok, H Waisman - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
In this paper, an efficient formulation for the topology optimization of extruded beams is
developed considering linearized buckling, displacement, and stress constraints. The …

XFEM based method for buckling analysis of thin-walled beams

A Marzok, H Waisman - Thin-Walled Structures, 2023 - Elsevier
Buckling of thin-walled beams involves complex deformation modes, making their analyses
challenging. Most of the methods available for the computation of buckling loads of these …

Efficient XFEM approach for the analysis of thin-walled beams

A Marzok, T DeGanyar, H Waisman - Engineering Structures, 2023 - Elsevier
This paper presents a new approach to the analysis of thin-walled beams. The proposed
model is developed by utilizing the eXtended Finite Element Method (XFEM). Global …

Globally enriched XFEM/GFEM approach for cracked beams

A Marzok, H Waisman - Thin-Walled Structures, 2024 - Elsevier
This paper presents an efficient approach for modeling beams with crack propagation and
discontinuities. The proposed approach relies on a globally enriched element within the …

Effects of warping shear deformation on the torsional load-bearing behaviour of assembled half-shell structures for wind energy towers

F Klein, S Marx - Engineering Structures, 2022 - Elsevier
This paper deals with an extended analytical calculation model for the torsional load-
bearing behaviour of assembled half-shell structures. The objective is to transfer the …

Torsional load-bearing capacity of half-shell segments for prestressed concrete towers

F Klein, S Marx - Engineering Structures, 2021 - Elsevier
This article deals with the torsional load-bearing behaviour of concrete half-shell structures.
The analogy between the bending stressed tension members according to second order …

The impact of section properties on thin walled beam sections with restrained torsion

TH Gebre, VV Galishnikova - Journal of Physics: Conference …, 2020 - iopscience.iop.org
In this paper the influence of section properties on thin walled beam sections with restrained
torsion is studied by considering the angle of twisting for non-uniform torsion. The study is …

Unified theory for analysis of curved thin-walled girders with open and closed cross section through HSA method

M Arici, MF Granata - Engineering Structures, 2016 - Elsevier
The behaviour of thin-walled structures is deeply influenced by non-uniform torsion and
cross section distortion. In this paper the extension of the Hamiltonian Structural Analysis …

Compressive buckling for symmetric TWB with non-zero warping stiffness

G Piana, E Lofrano, A Manuello, G Ruta… - Engineering Structures, 2017 - Elsevier
Torsion and bending/torsion buckling may occur for compressed thin-walled open profiles
used in engineering and architecture applications. We report experimental results provided …

Topology optimization of extruded beams modeled with the XFEM for maximizing their natural frequencies

A Marzok, H Waisman - Mechanics Research Communications, 2024 - Elsevier
In this paper, an efficient topology optimization approach is developed for maximizing the
fundamental natural frequency of extruded beams. Mass fraction and static compliance …