Elastic axially compressed buckling of battened columns

Chen, Jiankang; Li, Long-yuan

doi:10.1016/j.ijmecsci.2013.09.016

Cited by 20 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Euler's equation discusses the small elastic deflection of ideal columns. However, we investigate first the nature of buckling and the difference between theory and practice [12].…”

Section: Euler Formulamentioning

confidence: 99%

Effect of Underground Corrosion on the Buckling of Al Alloy 6061-T4 Columns under Increasing Load

Khenyab

Ajaj

Helal

2018

NJES

View full text Add to dashboard Cite

This research deals with the extent to which corrosion affects the behavior of buckling for 6061-T4 aluminum alloy under increasing compressive dynamic loads. Two types of columns, long, and intermediate were used.1% of the length column is the allowable lateral deflection. This is called the critical buckling of the columns. For the purpose of calculating the critical deflection, a digital dial gauge was used and set at a distance of 0.7 of column length from the fixed end condition for the column. The experimental analysis revealed that the corrosion time negatively affects the mechanical properties of materials such as the corroded specimens of 60 days (The least time to observe the corrosion of aluminum in the soil) which have approximately 2.7 % reduction in ultimate strength compared with the non-corroded specimen. Increasing the corrosion time reduces the critical load such as the maximum reduction will be 4.24% in critical buckling load for 60 days’ corrosion time. The results obtained were experimentally compared with the theoretical formulas of the Perry-Robertson and Euler-Johnson formula with the results of the ANSYS. It was found that the Perry-Robertson formula has a good agreement with the experimental results with a safety factor of 1.2, while the Euler-Johnson formula agreed with the experimental results taking a safety factor of 1.5. The ANSYS results showed a good agreement between the measured and calculated values by taking 1.1 factor of safety.

show abstract

“…Euler's equation discusses the small elastic deflection of ideal columns. However, we investigate first the nature of buckling and the difference between theory and practice [12].…”

Section: Euler Formulamentioning

confidence: 99%

Effect of Underground Corrosion on the Buckling of Al Alloy 6061-T4 Columns under Increasing Load

Khenyab

Ajaj

Helal

2018

NJES

View full text Add to dashboard Cite

show abstract

“…Let Á be the generalized shear displacement, which is de¯ned in terms of the strain energy of the battens caused by the axial and transverse displacements of the main members. 30 The geometrical relation between the centroids of the upper and lower main members indicates that,…”

Section: Analysis Model and Corresponding Strain Energy Expressionsmentioning

confidence: 99%

“…(27)- (30), the¯nite element analysis of the free vibration of two-dimensional (2D) battened beams with lengths ranging from 1 m to 15 m is accomplished using the 2D three-nodes beam element built in ANSYS software with element lengths a for main members and 2e for battens. The main members and battens used to assemble the battened beams are assumed to be the square hollow section steel members with a side length 50 mm and a wall thickness 5 mm.…”

Section: Finite Element Analysis and Validation Of Analytical Solutionmentioning

confidence: 99%

“…Figure 3 shows the comparison of the frequencies of three vibration modes with wave numbers m ¼ 1, 2, and 3, obtained by solving Eqs. (27) to (30) and those obtained from the¯nite element analysis. It can be seen from these comparisons that the present analytical solution (that takes into account shear and discrete e®ects) agrees very well with the result obtained from the¯nite element analysis.…”

Section: Finite Element Analysis and Validation Of Analytical Solutionmentioning

confidence: 99%

See 1 more Smart Citation

Free Vibration Analysis of Battened Beams

Chen

2014

Int. J. Str. Stab. Dyn.

Self Cite

View full text Add to dashboard Cite

This paper presents an analytical solution for the free vibration analysis of simply supported battened beams/columns. The free vibration frequencies are derived using the classical Hamilton's principle. Unlike most of the existing studies on this topic, the present approach considers not only the transverse shear deformation e®ect but also the discrete e®ect of battens on the dynamic characteristics of the beams. The present analytical solution is validated using the data obtained from the¯nite element analysis. The results show that the shear and discrete e®ects of battens have signi¯cant in°uence on the frequencies of battened beams, particularly for the beams that are short and the vibration modes that are in high-order. It is also shown that the frequency decreases with the increase of the beam length. The decrease is rather rapid for beams that are shorter than 5 m.

show abstract

“…These studies showed that these effects must be taken into account particularly in structures made of columns with relatively low effective shear areas A s such as battened and laced columns. More recently Chen and Li (2013) considered the shear effects of evenly distributed battens on the global buckling capacity.…”

Section: Introductionmentioning

confidence: 99%

Torsional-Flexural Buckling of Unevenly Battened Columns under Eccentrical Compressive Loading

Ren

Cheng

et al. 2016

J. Eng. Mech.

View full text Add to dashboard Cite

Abstract:In this paper, an analytical model is developed to determine the torsional-flexural buckling load of a channel column braced by unevenly distributed batten plates. Solutions of the critical buckling loads were derived for three boundary cases using the energy method in which the rotating angle between the adjacent battens was presented in the form of a piecewise cubic Hermite interpolation (PCHI) for unequally spaced battens. The validity of the PCHI method was numerically verified by the classic analytical approach for evenly battened columns and a finite element analysis for unevenly battened ones, respectively. Parameter studies were then performed to examine the effects of loading eccentricities on the torsional-flexural buckling capacity of both evenly and unevenly battened columns. Design parameters taken into account were the ratios of pure torsional buckling load to pure flexural buckling load, the number and position of battens, and the ratio of the relative extent of the eccentricity. Numerical results were summarized into a series of relative curves indicating the combination of the buckling load and corresponding moments for various buckling ratios.2

show abstract

Elastic axially compressed buckling of battened columns

Cited by 20 publications

References 21 publications

Effect of Underground Corrosion on the Buckling of Al Alloy 6061-T4 Columns under Increasing Load

Effect of Underground Corrosion on the Buckling of Al Alloy 6061-T4 Columns under Increasing Load

Free Vibration Analysis of Battened Beams

Torsional-Flexural Buckling of Unevenly Battened Columns under Eccentrical Compressive Loading

Contact Info

Product

Resources

About