A hybrid stress element for thin-walled beams

Date

2003-04-05

Author

Oral, Süha

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

201
views

0
downloads

A hybrid stress finite element for linear static analysis of thin-walled beams is presented. The element is based on Vlasov theory. The hybrid stress formulation is particularly suitable in this case where displacement assumption is not necessary and a simple polynomial assumption for independent stress resultants is sufficient to form the element stiffness matrix. The result is a simple and elegant element, which is accurate and cost effective. The formulation is assessed by analyzing a structure having open and closed sections. The results are in perfect agreement with previous solutions.

Subject Keywords

Vlasov theory, Thin-walled beam, Hybrid stress, Finite element

URI

https://hdl.handle.net/11511/54449

Collections

Department of Mechanical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

A Three dimensional mixed formulation nonlinear frame finite element based on hu-washizu functional Soydaş, Ozan; Sarıtaş, Afşin; Department of Civil Engineering (2013) A three dimensional nonlinear frame finite element is presented in this analytical study by utilizing Hu-Washizu principle with three fields of displacement, strain and stress in the variational form. Timoshenko beam theory is extended to three dimensions in order to derive strains from the displacement field. The finite element approximation for the beam uses shape functions for section forces that satisfy equilibrium and discontinous section deformations along the beam. Nonlinear analyses are performed by...
A Panel Finite Element with Distortional Modes for the Analysis of Open Section Thin Walled Beams Ontaç, Suat; Oral, Süha; Department of Mechanical Engineering (2023-2-21) In this thesis, a panel finite element is developed for the analysis of the isotropic, open section, thin walled beams. In this study, the axial deformation, Euler-Bernoulli bending, Vlasov torsion and Kirchoff shell theories are combined to determine the displacements including in-plane and out-of-plane distortions in the cross sections of open section thin walled beams. The open section thin walled beam element is obtained by the assembly of panel elements. This element has two nodes each having 15 degree...
A crystal plasticity based finite element framework for RVE calculations of two-phase materials: Void nucleation in dual-phase steels Yalçınkaya, Tuncay; Çakmak, Serhat Onur (Elsevier BV, 2021-05-01) A crystal plasticity based finite element (CPFE) framework is developed for performing representative volume element (RVE) calculations on two-phase materials. The present paper investigates the mechanical response and the evolution of microstructure of dual-phase (DP) steels under uniaxial tensile loading, with a special focus on void nucleation. The spatial distribution and morphology of the ferrite and martensite grains in DP steels are explicitly accounted for by generating three-dimensional RVEs with V...
A Novel Numerical Technique for Analyzing Metasurfaces ÖZGÜN, ÖZLEM; Mittra, Raj; Kuzuoğlu, Mustafa (2019-12-31) This work presents a novel technique for efficient numerical modeling of electromagnetic scattering from metasurfaces comprising of truncated periodic or locally-varying quasi-periodic surfaces. The proposed technique hybridizes the periodic Finite Element Method (FEM) with the Method of Moments (MoM) to develop an algorithm far more efficient than conventional numerical methods for electromagnetic scattering from arbitrary objects. The key feature of the proposed algorithm is that it takes advantage of the...
A Modular Superconducting Generator for Offshore Wind Turbines Keysan, Ozan; Mueller, Markus A (2013-05-01) In this study, a new claw-pole type transverse flux superconducting generator topology is presented. The machine has a stationary superconducting field winding, which eliminates electrical brushes and cryocouplers. The machine is specifically designed for low-speed high torque applications such as large offshore wind turbines. The proposed machine is robust and has a modular structure.

Citation Formats

S. Oral, “A hybrid stress element for thin-walled beams,” 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54449.