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Article: Stress-strain Relationship of Cold-formed Lean Duplex Stainless Steel at Elevated Temperatures
Title | Stress-strain Relationship of Cold-formed Lean Duplex Stainless Steel at Elevated Temperatures |
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Authors | |
Keywords | Elevated temperatures Fire resistance Lean duplex Material properties Stainless steel Steady state tests Transient state tests |
Issue Date | 2014 |
Publisher | Elsevier. The Journal's web site is located at http://www.elsevier.com/locate/jcsr |
Citation | Journal of Constructional Steel Research, 2014, v. 92, p. 103-113 How to Cite? |
Abstract | A test programme to examine the material properties of a relatively new cold-formed lean duplex stainless steel at elevated temperatures is presented. A total of 80 tensile coupon tests were carried out by both steady state test method and transient state test method for temperatures ranged from 24 to 900 °C. The coupons were extracted from square and rectangular hollow sections. Material properties including thermal elongation, Young's modulus, yield strength, ultimate strength and ultimate strain were obtained. The test results and available data were compared with the design values in the European Code as well as a unified equation by Chen and Young [1] for stainless steel. The lean duplex stainless steel is not covered by these design rules. Reliability analysis was carried out to assess the applicability of these existing design rules. It is shown that the material properties of lean duplex stainless steel at elevated temperatures cannot be well predicted by the existing design rules. Modification to the existing design rules for lean duplex stainless steel at elevated temperatures is proposed. The stress–strain curves of the test specimens under different temperatures were plotted and compared with stress–strain curves predicted by the unified equation using modified coefficients. It is shown that the stress–strain curves and other material properties predicted by the modified design rules agree well with the test results. |
Persistent Identifier | http://hdl.handle.net/10722/200515 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Huang, Y | en_US |
dc.contributor.author | Young, B | en_US |
dc.date.accessioned | 2014-08-21T06:49:51Z | - |
dc.date.available | 2014-08-21T06:49:51Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.citation | Journal of Constructional Steel Research, 2014, v. 92, p. 103-113 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/200515 | - |
dc.description.abstract | A test programme to examine the material properties of a relatively new cold-formed lean duplex stainless steel at elevated temperatures is presented. A total of 80 tensile coupon tests were carried out by both steady state test method and transient state test method for temperatures ranged from 24 to 900 °C. The coupons were extracted from square and rectangular hollow sections. Material properties including thermal elongation, Young's modulus, yield strength, ultimate strength and ultimate strain were obtained. The test results and available data were compared with the design values in the European Code as well as a unified equation by Chen and Young [1] for stainless steel. The lean duplex stainless steel is not covered by these design rules. Reliability analysis was carried out to assess the applicability of these existing design rules. It is shown that the material properties of lean duplex stainless steel at elevated temperatures cannot be well predicted by the existing design rules. Modification to the existing design rules for lean duplex stainless steel at elevated temperatures is proposed. The stress–strain curves of the test specimens under different temperatures were plotted and compared with stress–strain curves predicted by the unified equation using modified coefficients. It is shown that the stress–strain curves and other material properties predicted by the modified design rules agree well with the test results. | - |
dc.language | eng | en_US |
dc.publisher | Elsevier. The Journal's web site is located at http://www.elsevier.com/locate/jcsr | en_US |
dc.relation.ispartof | Journal of Constructional Steel Research | en_US |
dc.rights | NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Constructional Steel Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Constructional Steel Research, 2014, v. 92, p. 103-113. DOI: 10.1016/j.jcsr.2013.09.007 | en_US |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Elevated temperatures | - |
dc.subject | Fire resistance | - |
dc.subject | Lean duplex | - |
dc.subject | Material properties | - |
dc.subject | Stainless steel | - |
dc.subject | Steady state tests | - |
dc.subject | Transient state tests | - |
dc.title | Stress-strain Relationship of Cold-formed Lean Duplex Stainless Steel at Elevated Temperatures | en_US |
dc.type | Article | en_US |
dc.identifier.email | Young, B: young@hku.hk | en_US |
dc.identifier.authority | Young, B=rp00208 | en_US |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.jcsr.2013.09.007 | - |
dc.identifier.scopus | eid_2-s2.0-84887843498 | - |
dc.identifier.hkuros | 233363 | en_US |
dc.identifier.volume | 92 | en_US |
dc.identifier.spage | 103 | en_US |
dc.identifier.epage | 113 | en_US |
dc.identifier.isi | WOS:000329418100010 | - |