A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Flexural buckling of cold-drawn oxygen-free copper tubular columns with circular hollow sections under axial compression
Abstract Oxygen-free copper (OFC) has been increasingly used in engineering applications due to many advantageous properties. In order to investigate the flexural buckling behaviour of OFC tubular columns under axial compression, seven full-scale specimens were tested. The buckling failure modes of the specimens were analyzed, and the flexural buckling strengths were obtained. Subsequently, two finite element models were developed and verified against the test data. A parametric study was performed as well. The results showed that the OFC columns with small slenderness failed by elastic-plastic buckling, while those with high slenderness failed by elastic buckling. Eqs. (9) and (11), which are based on the Perry formula, suitably described the buckling curves of the OFC tubular columns. The value of α in Eq. (9) was 0.293; and the values of α 1, α 2, and α 3 in Eq. (11) were 1.647, 1.041, and 0.175, respectively.
Highlights Hardening stage of OFC was not pronounced. The ends of OFC columns were prone to local buckling if stiffeners were welded to them. The OFC columns with small slenderness failed by elastic-plastic buckling. The OFC columns with high slenderness failed by elastic buckling. Perry formula suitably described the buckling curves of OFC tubular columns.
Flexural buckling of cold-drawn oxygen-free copper tubular columns with circular hollow sections under axial compression
Abstract Oxygen-free copper (OFC) has been increasingly used in engineering applications due to many advantageous properties. In order to investigate the flexural buckling behaviour of OFC tubular columns under axial compression, seven full-scale specimens were tested. The buckling failure modes of the specimens were analyzed, and the flexural buckling strengths were obtained. Subsequently, two finite element models were developed and verified against the test data. A parametric study was performed as well. The results showed that the OFC columns with small slenderness failed by elastic-plastic buckling, while those with high slenderness failed by elastic buckling. Eqs. (9) and (11), which are based on the Perry formula, suitably described the buckling curves of the OFC tubular columns. The value of α in Eq. (9) was 0.293; and the values of α 1, α 2, and α 3 in Eq. (11) were 1.647, 1.041, and 0.175, respectively.
Highlights Hardening stage of OFC was not pronounced. The ends of OFC columns were prone to local buckling if stiffeners were welded to them. The OFC columns with small slenderness failed by elastic-plastic buckling. The OFC columns with high slenderness failed by elastic buckling. Perry formula suitably described the buckling curves of OFC tubular columns.
Flexural buckling of cold-drawn oxygen-free copper tubular columns with circular hollow sections under axial compression
Zhang, Tianxiong (author) / Wang, Zongyi (author) / Wang, Yuanqing (author) / Chen, Zhihua (author)
Thin-Walled Structures ; 149
2020-01-28
Article (Journal)
Electronic Resource
English
Investigation on flexural buckling of laminated glass columns under axial compression
| Online Contents | 2017
Analysis of Flexural Buckling Capacity of Stainless Steel Columns under Axial Compression
| DOAJ | 2022