Quasi-hinge beam element implemented within the hybrid force-based method

Biglari, A., Harrison, P. and Bićanić, N. (2014) Quasi-hinge beam element implemented within the hybrid force-based method. Computers and Structures, 137, pp. 31-46. (doi: 10.1016/j.compstruc.2013.10.016)

Abstract

This paper describes a new force-based hinge element implemented in the framework of the Large Increment Method (LIM). The element can be of arbitrary cross section and is capable of including inelastic behaviour close to structural hinges. The element formulation can accommodate elasto-plastic strain hardening material behaviour. The solution procedure involves the analysis of elastic and inelastic deformations separately facilitated by splitting of the element length into elastic and inelastic zones. Deformation is calculated by considering inelastic behaviour in the element volume close to both ends of the structural member using an optimum number of integration points in order to achieve good accuracy while maintaining computational efficiency. The predictions of both conventional- and quasi-hinge elements are compared against predictions from Abaqus™. Predictions of the quasi-hinge element show significant improvements over the conventional-hinge method and are shown to converge on the Abaqus™ prediction as the number of monitoring sections in the element is increased.

• Item Type: Articles
• Additional Information: We would like to gratefully acknowledge financial support from Iran’s Ministry of Science, Research and Technology and the Royal Academy of Engineering (Ref. 43100168)<p></p> NOTICE: this is the author’s version of a work that was accepted for publication in Computers and Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computers and Structures 137:31-46 June 2014 DOI: 10.1016/j.compstruc.2013.10.016
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Harrison, Dr Philip
• Authors: Biglari, A., Harrison, P., and Bićanić, N.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Computers and Structures
• Publisher: Elsevier Ltd.
• ISSN: 0045-7949
• ISSN (Online): 1879-2243
• Copyright Holders: Copyright © 2013 Elsevier Ltd.
• First Published: First published in Computers and Structures 137:31-46
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher