Ultimate Strength of Continuous Stiffened Aluminium Plates Under Combined Biaxial Compression and Lateral Pressure

Abstract

Ultimate compressive strength of welded stiffened aluminium plates under combined biaxial in-plane compression and different levels of lateral pressure is assessed herein. A numerical database of the ultimate strengths for stiffened aluminium plates is generated at first. Then, regression analysis is applied in order to derive the empirical formulations as functions of two parameters, namely the plate slenderness ratio and the column (stiffener) slenderness ratio. The formulae implicitly include the effects of initial imperfections and heat affected zone.

Study on Ultimate Compressive Strength of Aluminium-Alloy Plates and Stiffened Panels

“…The deformation shape of the panel is the thin horse mode. This simple procedure (Figure 5) proposed by Rigo et al (2003) was applied in many investigations (Khedmati et al , 2010a(Khedmati et al , 2010b(Khedmati et al , 2014(Khedmati et al , 2015Pedram and Khedmati Conley et al (1963);Mofflin (1983); Wang et al (2005); Collette et al (2008); Benson et al (2011; Loaded edges:…”