Finite element modelling and parametric studies of semi-closed thin-walled steel polygonal columns
Authors
Supervisors
Reviewers
Editors
Other contributors
Journal Title
Journal ISSN
Volume Title
Publisher
České vysoké učení technické v Praze
Czech Technical University in Prague
Czech Technical University in Prague
Date of defense
2017-01-20
Abstract
Objective of this work is to study the proposed structural sections in design situation and to investigate possible design models. The expected structural behavior of the column is a mixture between the open and closed cross-section. These cases will be investigated through numerical study. In this thesis presented a comprehensive parametric study on the ultimate strength of proposed coldformed steel columns using the Finite Element package ABAQUS. FE models were first developer for columns by using automation that was made through MATLAB and Python script. The buckling and non-linear FE study was done for the investigation of local (L), distortional (D) and global (G) possible buckling failures and ultimate resistance, respectively. Modelling issues such as boundary conditions, meshing, initial imperfections, material models, and non-linear solution controls in FEA were also addressed.
Objective of this work is to study the proposed structural sections in design situation and to investigate possible design models. The expected structural behavior of the column is a mixture between the open and closed cross-section. These cases will be investigated through numerical study. In this thesis presented a comprehensive parametric study on the ultimate strength of proposed coldformed steel columns using the Finite Element package ABAQUS. FE models were first developer for columns by using automation that was made through MATLAB and Python script. The buckling and non-linear FE study was done for the investigation of local (L), distortional (D) and global (G) possible buckling failures and ultimate resistance, respectively. Modelling issues such as boundary conditions, meshing, initial imperfections, material models, and non-linear solution controls in FEA were also addressed.
Objective of this work is to study the proposed structural sections in design situation and to investigate possible design models. The expected structural behavior of the column is a mixture between the open and closed cross-section. These cases will be investigated through numerical study. In this thesis presented a comprehensive parametric study on the ultimate strength of proposed coldformed steel columns using the Finite Element package ABAQUS. FE models were first developer for columns by using automation that was made through MATLAB and Python script. The buckling and non-linear FE study was done for the investigation of local (L), distortional (D) and global (G) possible buckling failures and ultimate resistance, respectively. Modelling issues such as boundary conditions, meshing, initial imperfections, material models, and non-linear solution controls in FEA were also addressed.
Description
Keywords
Lattice tower, Thin-walled element, Semi-closed polygonal section, Finite element analysis, Parametric study, Buckling, Python script, Matlab script, Eurocode 3, Factorial design, Lattice tower, Thin-walled element, Semi-closed polygonal section, Finite element analysis, Parametric study, Buckling, Python script, Matlab script, Eurocode 3, Factorial design
Citation
Underlying research data set URL
Permanent link
Rights/License
A university thesis is a work protected by the Copyright Act of the Czech Republic. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one`s own expense. The use of thesis should be in compliance with the Copyright Act.
Vysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem v platném znění.
Vysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem v platném znění.