Residential College | false |
Status | 已發表Published |
Finite element predictions of residual stresses in cold-formed sections | |
Quach, W. M.1![]() ![]() | |
2003-06-22 | |
Conference Name | The International Conference on Advances in Structures (ASSCCA'03), Sydney, Australia, 22-25 June 2003 |
Source Publication | Advances in Structures: Proceedings of the International Conference on Advances in Structures (ASSCCA'03), Sydney, Australia, 22-25 June 2003
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Volume | 1 |
Pages | 325-331 |
Conference Date | 22-25 June 2003 |
Conference Place | Sydney, Australia |
Publication Place | Netherlands |
Publisher | A.A. Balkema |
Abstract | Residual stresses in cold-formed sections may play a significant role in determining their behavior and strength. Laboratory measurements of residual stresses by destructive methods are not only time-consuming but also of limited accuracy. This paper describes a finite element-based method for predicting residual stresses in press-braked thin-walled sections, which overcomes these difficulties. The method offers a powerful tool for exploring the effect of different forming parameters on the magnitude and distribution of residual stresses so that these forming parameters can be optimized. In this method, the effects of coiling and uncoiling are accounted for analytically, with the resulting residual stresses specified as initial stresses in a subsequent finite element simulation of cold bending. Numerical results from this method are shown to agree closely with laboratory measurements, demonstrating the validity and accuracy of the method. The present method provides residual stress distributions over the cross-section as well as across the thickness, and also explains why residual stresses may differ considerably in otherwise identical sections. |
Indexed By | EI |
Language | 英語English |
The Source to Article | PB_Publication |
Document Type | Conference paper |
Collection | Faculty of Science and Technology DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING |
Corresponding Author | Quach, W. M. |
Affiliation | 1.University of Macau, Macau, China 2.Hong Kong Polytechnic University |
First Author Affilication | University of Macau |
Corresponding Author Affilication | University of Macau |
Recommended Citation GB/T 7714 | Quach, W. M.,Teng, J. G.,CHUNG , K. F.. Finite element predictions of residual stresses in cold-formed sections[C], Netherlands:A.A. Balkema, 2003, 325-331. |
APA | Quach, W. M.., Teng, J. G.., & CHUNG , K. F. (2003). Finite element predictions of residual stresses in cold-formed sections. Advances in Structures: Proceedings of the International Conference on Advances in Structures (ASSCCA'03), Sydney, Australia, 22-25 June 2003, 1, 325-331. |
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