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Modelling and probabilistic study of the residual stress of cold-formed hollow steel sections
HighlightsThe residual stress in cold-formed steel hollow sections is studied.The effects of residual stress can be approximated by modifying the steel stress-strain curve.The proposed approach for modelling residual stress can be used in beam element-based nonlinear frame analysis.The effects of different components of residual stress on frame ultimate strength are examined.A probabilistic study is carried out to study the effect of the uncertainty in residual stress on frame strength.
AbstractCold-formed Hollow Steel Sections (HSS) are widely used in the construction industry. The distribution of residual stress in non-stress-relieved cold-formed HSS is complex due to the highly non-uniform variation around the cross-section and through the plate thickness. Modeling residual stress in frame analysis is therefore a difficult task. This paper presents a practical method for approximating the effects of different components of residual stress on the behavior of cold-formed HSS by modifying the steel stress-strain curve. The method proposes a convenient means of including residual stress in beam element-based nonlinear frame analysis. A probabilistic study is then carried out to study the effect of the uncertainty in residual stress on frame strength.
Modelling and probabilistic study of the residual stress of cold-formed hollow steel sections
HighlightsThe residual stress in cold-formed steel hollow sections is studied.The effects of residual stress can be approximated by modifying the steel stress-strain curve.The proposed approach for modelling residual stress can be used in beam element-based nonlinear frame analysis.The effects of different components of residual stress on frame ultimate strength are examined.A probabilistic study is carried out to study the effect of the uncertainty in residual stress on frame strength.
AbstractCold-formed Hollow Steel Sections (HSS) are widely used in the construction industry. The distribution of residual stress in non-stress-relieved cold-formed HSS is complex due to the highly non-uniform variation around the cross-section and through the plate thickness. Modeling residual stress in frame analysis is therefore a difficult task. This paper presents a practical method for approximating the effects of different components of residual stress on the behavior of cold-formed HSS by modifying the steel stress-strain curve. The method proposes a convenient means of including residual stress in beam element-based nonlinear frame analysis. A probabilistic study is then carried out to study the effect of the uncertainty in residual stress on frame strength.
Modelling and probabilistic study of the residual stress of cold-formed hollow steel sections
Liu, Wenyu (author) / Rasmussen, Kim J.R. (author) / Zhang, Hao (author)
Engineering Structures ; 150 ; 986-995
2017-08-02
10 pages
Article (Journal)
Electronic Resource
English
Residual Stresses in Cold‐Formed Square Hollow Sections of High Strength Steel
| Wiley | 2023