Buckling Behaviour of Stainless Steel Square Hollow Sections
Structural stainless steel design guidelines should appropriately recognise its characteristic beneficial properties such as material nonlinearity and significant strain hardening.The Continuous Strength Method (CSM) exploits those through a strain based approach for both stocky and slender cross-sections.In this paper,a new design method is proposed that combines the CSM with Perry type buckling curves.Numerical models were developed to investigate effects of various parameters on column strength and to develop full column curves.It was observed that material nonlinearity significantly influence column strengths,and hence,different column curves were developed for a total of 20 material property combinations by calibrating imperfection factor and limiting slenderness ratio for each set.Proposed method includes the strain hardening benefits for stocky section,and abolished the necessity of calculating effective cross-sectional properties for slender sections.Performance of the proposed technique is compared against those obtained by the Eurocode EN1993-1-4.
Continuous Strength Method Column curves Critical Buckling stress Perry Curves
Shameem Ahmed Mahmud Ashraf Mohammad Anwar-Us-Saadat
The University of New South Wales,Canberra,Australia
国际会议
2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)
天津
英文
301-305
2016-05-26（万方平台首次上网日期，不代表论文的发表时间）