Effect of transverse impact on buckling behavior of compressed column

Sastranegara, Azhari; Adachi, Tadaharu; Yamaji, Akihiko

doi:10.1016/j.tws.2006.04.010

Cited by 9 publications

(7 citation statements)

References 7 publications

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“…The most important parameters are the value of t/D and the ratio of slenderness compared with other parameters, which influenced the response of a CFST column under lateral impact load in the study. The effects of transverse impact on the buckling behavior of a compressed column have been investigated by a numerical analysis, which is presented by Sastranegara et al [25]. The critical condition to produce buckling was the transverse impact load, which could be found from this study's results.…”

Section: Introductionmentioning

confidence: 61%

Behavior of Circular CFST Columns Subjected to Different Lateral Impact Energy

et al. 2019

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Forty-eight circular concrete-filled steel tube (CFST) columns subjected to lateral impact were tested to investigate the behavior of circular CFST columns under axial compressive load. Analyses of effects of concrete compressive strength, impact location and impact energy on residual ultimate axial capacity, ductility and initial stiffness are provided in this paper. It is found that lateral impact has negative effects on residual ultimate axial capacity of circular CFST columns from test results. Residual ultimate axial capacity decreases as impact energy increases and impact location comes close to the end of the specimen. It is also found that increasing concrete compressive strength can reduce the negative effects of impact location on residual ultimate axial capacity. Ductility and the initial stiffness of circular CFST columns decrease as impact energy increases. Ductility and the initial stiffness increase as impact location varies from middle-length to the end of specimens. When impact energy and impact location are constant, the ductility of the specimen with 30 MPa of concrete compressive strength is better than that of other specimens with different compressive strength. Besides, analyses of strain developments for 12 typical specimens to investigate failure modes under axial compressive load are provided in this paper. Strain developments have indicated that the steel at impact location becomes plastic faster than that at other locations. Based on the test results, a calculation formula is presented to predict the residual ultimate axial capacities of circular CFST columns subjected to lateral impact, and good agreement with experimental results has been achieved.

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Section: Introductionmentioning

confidence: 61%

Behavior of Circular CFST Columns Subjected to Different Lateral Impact Energy

et al. 2019

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“…The equation of the external work done by the axial load can also be derived based on the assumed static deformation shape. The static deformation shape could be assumed to be the deformation shape of the structural member under transverse loads (Biggs, 1964, Humar, 2002, or the buckling mode shape of the column (Adachi et al, 2004, Sastranegara et al, 2006, Shope, 2006. Afterwards, the energy quantities are used to write the energy conservation equation for the original dynamic system.…”

Section: Analytical Research Studiesmentioning

confidence: 99%

“…Damping has no significant effect on structural behaviour for the simulated cases in this study because the duration of the impact is very short compared to the natural period of the structure system (Jones, 1997, Sastranegara et al, 2006, Zeinoddini et al, 2008, Thilakarathna et al, 2010. However, to investigate any possible effect of damping, the procedure below is used to determinate the damping coefficient.…”

Section: Damping Effectsmentioning

confidence: 99%

Behaviour and Design of Steel Columns Subjected to Vehicle Impact

Al-Thairy

Wang

2014

AMM

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The main objective of this study is to develop a simplified analytical approach to predict the critical velocity of vehicle impact on steel columns. This method utilizes the energy balance principle with a quasi-static approximation of the steel column response. Results of ABAQUS numerical simulations of the dynamic impact response of axially loaded steel columns under vehicle impact are used to validate the proposed method. To account for the effect of vehicle impact, a simplified numerical vehicle model has been adopted using a spring-mass system with a bilinear spring load-deformation relationship. The validation results show good agreement between the analytical method results and the numerical results with the analytical results tending to be on the safe side.

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“…Adachi et al [17] and Sastranegara et al [18] investigated experimentally and numerically the buckling and post buckling behaviour of axially compressed aluminium columns subjected to lateral impact loads. They also identified global instability as the main failure mode of the columns.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

“…During this stage, the impact duration is very short compared to the natural period of the structure system (Jones [19], Sastranegara et a, [18], Zeinoddini, et al, [16] and Thilakarathna M A N U S C R I P T…”

Section: Damping Effectsmentioning

confidence: 99%

A numerical study of the behaviour and failure modes of axially compressed steel columns subjected to transverse impact

Al-Thairy

Wang

2011

International Journal of Impact Engineering

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In this study a numerical simulation of the behaviour and failure modes of axially compressed steel column subjected to transverse impact by a rigid mass at different impact speeds and locations is presented. Firstly, the capability of the present numerical model to trace the response and to predict different failure modes of transversely impacted beams and columns with and without axial compressive force has been validated. These failure modes include plastic global failure, tensile tearing failure and transverse shear failure. The validation was performed by comparing simulation results in term of the contact force, deformation shape, failure mode and the maximum transverse displacement with available published experimental test results by others. The progressive damage and failure model available in ABAQUS/Explicit has been utilized in the present numerical models to account for material shear and tensile tearing failure under impact. Comparisons between the experimental and simulation results confirmed that the numerical models were able to accurately predict the aforementioned failure modes. Thereafter, a parametric study has been conducted to investigate the effects of several parameters on the response of axially loaded steel column, based on the results of which simplifying assumptions on column behaviour under impact can be made to develop appropriate design calculation methods for steel columns under such loading conditions.

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Effect of transverse impact on buckling behavior of compressed column

Cited by 9 publications

References 7 publications

Behavior of Circular CFST Columns Subjected to Different Lateral Impact Energy

Behavior of Circular CFST Columns Subjected to Different Lateral Impact Energy

Behaviour and Design of Steel Columns Subjected to Vehicle Impact

A numerical study of the behaviour and failure modes of axially compressed steel columns subjected to transverse impact

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