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Simplified models for residual stresses and equivalent plastic strains in cold-formed steel elliptical hollow sections
Yao,Ye1; Quach,Wai Meng1; Young,Ben2
2020-09-01
Source PublicationThin-Walled Structures
ISSN0263-8231
Volume154Pages:106835
Abstract

The manufacturing process of cold-formed steel members induces cold work which has a significant effect on their structural performance. In order to assess this cold-working effect, residual stresses and equivalent plastic strains need to be quantified. A finite element-based method was recently proposed by the authors for predicting the coexistent residual stresses and plastic strains in cold-formed steel hollow sections. In the present study, this finite element-based method was employed to carry out a parametric study in order to generate numerical data of the residual stresses and coexistent equivalent plastic strains in cold-formed steel elliptical hollow sections (EHS) for a wide range of steel grades (including both normal grade steels and high strength steels) and section sizes. By analyzing these numerical data, simplified models for residual stresses and coexistent equivalent plastic strains in cold-formed steel EHS are proposed. The simplified models can be employed to define the initial states of cold-formed steel EHS members in a nonlinear finite element analysis for their structural performance, and thus can be used to examine the cold-working effect on the member behavior in future studies.

KeywordCold Work Elliptical Hollow Sections Finite Element Simulation Plastic Strains Residual Stresses Simplified Models
DOI10.1016/j.tws.2020.106835
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Civil ; Engineering, Mechanical ; Mechanics
WOS IDWOS:000565157600010
PublisherELSEVIER SCI LTDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Scopus ID2-s2.0-85086383181
Fulltext Access
FWCI0.94503474
Citation statistics
Document TypeJournal article
CollectionFaculty of Science and Technology
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorQuach,Wai Meng
Affiliation1.Department of Civil and Environmental Engineering,University of Macau,Macau,China
2.Department of Civil and Environmental Engineering,The Hong Kong Polytechnic University,Hong Kong,China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Yao,Ye,Quach,Wai Meng,Young,Ben. Simplified models for residual stresses and equivalent plastic strains in cold-formed steel elliptical hollow sections[J]. Thin-Walled Structures,2020,154:106835.
APA Yao,Ye,Quach,Wai Meng,&Young,Ben.(2020).Simplified models for residual stresses and equivalent plastic strains in cold-formed steel elliptical hollow sections.Thin-Walled Structures,154,106835.
MLA Yao,Ye,et al."Simplified models for residual stresses and equivalent plastic strains in cold-formed steel elliptical hollow sections".Thin-Walled Structures 154(2020):106835.
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