Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/74677
Title: Static strength of stainless steel K- and N-joints at elevated temperatures
Authors: Lan, X 
Huang, Y
Chan, TM 
Young, B
Keywords: Circular hollow section
Elevated temperature
K-joint
N-joint
Stainless steel
Static strength
Issue Date: 2018
Publisher: Pergamon Press
Source: Thin-walled structures, 2018, v. 122, p. 501-509 How to cite?
Journal: Thin-walled structures 
Abstract: This paper aims to investigate the static strength of stainless steel gap and overlapped K- and N-joints at elevated temperatures. A numerical parametric study was conducted on circular hollow section (CHS) K- and N-joints under axial loads in the braces at different temperatures ranging from 22 to 760 °C. A wide range of geometric parameters and chord preload ratios of CHS K- and N-joints using duplex, high strength austenitic and normal strength (AISI 304) stainless steel was investigated. The joint strength reduction was compared with reduction factors of yield stress and elastic modulus of stainless steel materials at elevated temperatures. A unified strength equation for CHS K- and N-joints at elevated temperatures was proposed by adopting the reduction factor of yield stress. The statistical analysis shows that the proposed strength equation is accurate for stainless steel K- and N-joints at elevated temperatures.
URI: http://hdl.handle.net/10397/74677
ISSN: 0263-8231
EISSN: 1879-3223
DOI: 10.1016/j.tws.2017.10.009
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