Experimental investigation of plastic collapse of aluminium extrusions in biaxial bending

Belingardi, Giovanni; Peroni, Lorenzo

doi:10.1016/j.ijmecsci.2006.09.025

Cited by 10 publications

(6 citation statements)

References 19 publications

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“…These problems were investigated in many earlier researches, where the finite element method (FEM) and related experimental protocols were conducted. The sequence of sheet-metal bending was optimized using a robot (Shigeru & Atsushi, 2002 The plastic collapse of aluminum extrusions in biaxial bending was investigated (Belingardi & Peroni, 2007). The spring-back deformation during bending of a tube was studied (Da-xin et al, 2009).…”

Section: Finite Element Analysis 408mentioning

confidence: 99%

Finite Element Analysis on V-Die Bending Process

Thipprakmas¹

2010

Finite Element Analysis

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Section: Finite Element Analysis 408mentioning

confidence: 99%

Finite Element Analysis on V-Die Bending Process

Thipprakmas¹

2010

Finite Element Analysis

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“…In all stability problems, the finite element models were created from shell elements, the material was assumed to be elastic-plastic, and the obtained results were confronted with thin-walled beam theory, proving that some interesting conclusions that are contrary to the beam formulations can be drawn from the FEM analysis. Such conclusions should be verified by experimental investigations, especially in the case of aluminium extrusions, like those presented in Belingardi and Peroni (2007). For investigations related to rectangular thin-walled cross-section elements, a special stand for biaxial loading was designed to obtain a fundamental understanding of the influence of test loading conditions on element resistance.…”

Section: Introductionmentioning

confidence: 98%

“…Such influences are neglected in beam theory; note the need for FEM application in such cases. Therefore, the interaction of biaxial bending on the resistance curve in the case of thin-walled rectangular cross-section elements is analysed not only analytically but also numerically in papers (Kim and Wierzbicki 2000;Belingardi and Peroni 2005;Osterrieder and Kretzschmar 2006). In all stability problems, the finite element models were created from shell elements, the material was assumed to be elastic-plastic, and the obtained results were confronted with thin-walled beam theory, proving that some interesting conclusions that are contrary to the beam formulations can be drawn from the FEM analysis.…”

Section: Introductionmentioning

confidence: 99%

Buckling Resistance Criteria of Prismatic Beams Under Biaxial Moment Gradient

et al. 2018

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Laterally and torsionally unrestrained steel I-section beams are susceptible to torsional deformations between supports; therefore, according to Part 1-1 of Eurocode 3, they need to be designed to resist lateral-torsional buckling. Eurocode's steelwork design criteria require safety checking based on two stability interaction formulae utilizing the so-called equivalent uniform moment factors and the cross-section resistance formula that, in the case of moment gradient, refer to the beam end section. Uncoupling the beam stability resistance criterion and the cross-section resistance criterion may result in a nonuniform safety assessment of I-section beams. Finite element simulations of the beam resistance for different moment gradient ratios are performed. Verification of the buckling resistance is conducted by varying the following parameters: the slenderness ratio, the location of maximum end moments about both axes and the section depth-to-width ratio (i.e., considering rolled I-and H-sections). The variation in the accuracy of the current Eurocode resistance evaluation method is identified, and an approach for a better equalization of the safety predictions is suggested by considering different values of the most important factors influencing the stability performance of steel I-section beams.

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“…A large number of publications may be found, covering the study of structural cross-sections made of different materials (such as reinforced concrete sections [12,27], composite steel-concrete sections [23,24], steel sections [29], or aluminium sections [11], for instance). A review of different methods used for the evaluation of the cross-sections plastic resistance may be found in [25]; most of them essentially consider only axial stresses for the determination of the plastic section capacity.…”

Section: Introductionmentioning

confidence: 99%

“…The research works carried out with this purpose have been based on analytical studies [14,17], experimental investigations [11,26,30], and numerical models [10,19,20]. A large number of these studies took into account other aspects than the elastic or plastic carrying capacity of the cross-sections, such as the possible occurrence of local or overall buckling phenomena of the structural elements in biaxial bending [26,31,32].…”

Section: Introductionmentioning

confidence: 99%

Analytical evaluation of the elastic and plastic resistances of double symmetric rectangular hollow sections under axial force and biaxial bending

Baptista¹

2012

International Journal of Non-Linear Mechanics

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a b s t r a c tIn the recent codes for the design of steel structures, the elastic-plastic methods of analysis are recognised to provide an efficient estimation of the ultimate resistance of some of these structures. These methods are usually based on some basic hypotheses, such as the creation of plastic hinges in the most stressed cross-sections, for instance.As the development of these plastic hinges depends on the interaction between the internal forces and on the cross-section shape, specific equations are required for the analysis of different types of cross-sections. However, most frequently, these equations are not available, or they are expressed by means of simplified expressions; this is usually the case when biaxial bending is involved.This paper presents new interaction criteria for the analysis of steel rectangular hollow sections subjected to an axial force and biaxial bending moments, at the elastic or the plastic limit states (as long as buckling phenomena are not involved). The plastic interaction criteria are presented, in a first step, for some particular combinations of the internal forces, such as axial loading with bending about a main axis, and biaxial bending without axial loading. Then, the global solution for the simultaneous combination of an axial force and bending moments about both the main axes of inertia are described in detail. All these plastic interaction criteria are compared with the corresponding plastic criteria adopted in the Eurocode 3 (EC3). Some suggestions are presented in order to improve the results given by these EC3 criteria.

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Experimental investigation of plastic collapse of aluminium extrusions in biaxial bending

Cited by 10 publications

References 19 publications

Finite Element Analysis on V-Die Bending Process

Finite Element Analysis on V-Die Bending Process

Buckling Resistance Criteria of Prismatic Beams Under Biaxial Moment Gradient

Analytical evaluation of the elastic and plastic resistances of double symmetric rectangular hollow sections under axial force and biaxial bending

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