Numerical modeling of stainless steel structural components - a consistent approach
Author(s)
Gardner, L
Nethercot, DA
Type
Journal Article
Abstract
This paper describes numerical modeling of the structural response of stainless steel hollow sections. The aim of the investigation was to develop a consistent approach to the modeling of stainless steel structures. The developed finite element models are more sophisticated than any other reported attempts to model stainless steel structural behavior, with general expressions defined for material stress–strain behavior, enhanced strength corner properties, initial geometric imperfection modes, and amplitudes (local and global), and residual stresses. The general expressions define a consistent means of describing the key input parameters. A compound (two-stage) Ramberg–Osgood model is developed to describe stainless steel material stress–strain behavior in tension and compression. For the prediction of enhanced strength corner properties, a simple, though accurate model is proposed. Characterization of local plate imperfection amplitudes is described whereby a model originally devised for hot-rolled carbon steel cross sections was recalibrated and applied to stainless steel cross sections. Numerical prediction of the key performance measures from tests is achieved with a high degree of accuracy: On average, ultimate load was predicted to within 3% and with a low standard deviation; deformation at ultimate load was within 6%, but exhibited a higher standard deviation; and the general form of the load–deformation response and the failure modes were similar.
Date Issued
2004-10-01
Date Acceptance
2004-10-01
Citation
Journal of Structural Engineering, 2004, 130 (10), pp.1586-1601
ISSN
0733-9445
Publisher
American Society of Civil Engineers
Start Page
1586
End Page
1601
Journal / Book Title
Journal of Structural Engineering
Volume
130
Issue
10
Copyright Statement
© 2004 ASCE
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000224676000018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Engineering
CONSTRUCTION & BUILDING TECHNOLOGY
ENGINEERING, CIVIL
finite elements
flexural strength
hollow sections
imperfections
numerical models
residual stress
stainless steel
COLD-FORMED STEEL
HOLLOW SECTIONS
COLUMNS
BEHAVIOR
MEMBERS
DESIGN
BEAMS
Publication Status
Published