Crashworthiness analysis of foam–filled square column considering strain rate effect of the foam

Dirgantara, Tatacipta; Jusuf, Annisa; Kurniati, Eka Oktavia; Gunawan, Leonardo; Putra, Ichsan Setya

doi:10.1016/j.tws.2018.04.004

Cited by 29 publications

(10 citation statements)

References 31 publications

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“…Initial studies described thin-walled cylindrical profile degradation mechanisms [9,10]. Over the following years, scientific works focused on foam-filled thin-walled absorbers [11][12][13][14]. Due to their porous structure, these fillers increase the energy-absorption effectiveness of the absorber while maintaining the peak crushing force [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Geometrical Non-Linearity on the Crashworthiness of Thin-Walled Conical Energy-Absorbers

2020

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Crashworthiness of conical shells is known to depend on various factors. This study sets out to determine the extent to which the cross-sectional diameter contributes to their energy-absorbing properties. The object of the study was thin-walled aluminium tubes varying in upper diameter and wall thickness. The components were subjected to dynamic axial crushing kinetic energy equal to 1700 J. The numerical analysis was performed using Abaqus 6.14 software. The specific aim of the study was to determine the extent to which variable wall thickness affects the energy absorption capacity of the components under study. From the simulations, we have managed to establish a relationship between total energy absorption capacity and wall thickness. The results from the conducted analyses and the purpose-specific neural networks could provide the base for the future methodology for forecasting and optimisation of energy-absorbing systems.

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Section: Introductionmentioning

confidence: 99%

The Effect of Geometrical Non-Linearity on the Crashworthiness of Thin-Walled Conical Energy-Absorbers

2020

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“…Jafarian and Rezvani 16 showed that increasing of absorption power can be realized by bitubal structures filled by PU foam as well as the shrinking of tubes. The impacts of foam core to shape of deformation and values of crushing force by using squared aluminium columns filled by PU foam were studied by Dirgantara et al 17 Darvizeh et al 18 found that circumferentially grooved thickwalled tubes filled by PU foam can absorb for about 26% higher collision energy in comparison with empty one. The interaction between the foam and the tube wall was studied by Yalc¸ın and Genel.…”

Section: Introductionmentioning

confidence: 99%

“…The impacts of foam core to shape of deformation and values of crushing force by using squared aluminium columns filled by PU foam were studied by Dirgantara et al. 17 Darvizeh et al. 18 found that circumferentially grooved thick-walled tubes filled by PU foam can absorb for about 26% higher collision energy in comparison with empty one.…”

Section: Introductionmentioning

confidence: 99%

Experimental research of absorption properties of rigid foam filled circular seamless tube energy absorber under quasi-static axial load

Tanasković

Franklin

Mitrović

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part F:

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The aim of this research work is investigations of absorption characteristics of a circular seamless tube collision absorber filled by rigid polyurethane (PU) foam under axial load. Shrinking of circular tube passing through cone bushing starts after absorber is activated at the moment of collision. The energy absorption realises in three ways: elastic-plastic deformation of the tube wall, friction between absorption elements and compression the rigid PU foam inside the tube. Using rigid PU foam, as the seamless tube filler, in the process of collision energy absorption increases absorption power in comparing to with only empty tube, as well as gives gradual increases of deformation resistance during deformation process. Experimental research was prepared and realized in the laboratory using the scaled samples. The effect of rigid PU foam, configuration of absorber filled by PU foam on the absorption power and manufacturing technology of the samples, are considered and discussed in this paper. The results indicate that the shrinking foam filled tube absorber has for about 18% bigger absorption power than the empty one. Formation of numerical model and numerical analyses of shrinking foam filled tube absorber were realized using ANSYS software package. Force vs. stroke (F(s)) diagrams obtained by tests and numerical analyses are in a good correlation which confirms formed numerical model as a suitable for further quasi-static analyses and for dimensioning the similar types of absorber.

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“…e foam-filled thin-walled structure (FTS) is a widely used vibration-damping structure. Dirgantara et al [6] described the collisional mechanical properties of foamfilled single-wall and double-wall columns. e interaction between the foam core and the column wall changes the deformation mode from one partial fold to multiple propagation folds.…”

Section: Introductionmentioning

confidence: 99%

Buffering Performance of High‐Speed Impact Space Penetrator with Foam‐Filled Thin‐Walled Structure

Luo

Liu

et al. 2019

Shock and Vibration

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High-speed penetrators carrying detection equipment impact planetary bodies at high speeds, and they are therefore buried at depths of up to several meters beneath the surface. During the friction and collision with the crust of the planet, the acceleration of the scientific instrumentation is significantly large. The vibration protection structure for scientific instrumentation is necessary for the reduction of the peak value of the acceleration response and the improvement of the survival rate. In this study, a penetrator with a multilayered energy absorbing structure was developed to improve the survival rate of the penetrator, of which the foam-filled thin-walled structure (FTS) was applied to the penetrating vibration-damping structure. The penetration process of the penetrator into the planetary medium was simulated using the LS-DYNA software platform. The results obtained using empirical formulas and theoretical derivations were compared with the results of the numerical analysis. The reliability of the penetrator limit element model was then verified by conducting an impulse response experiment and simulation. The results suggest that FTS has a positive influence on the isolation impact and energy absorption. Moreover, the vibration isolation effects of nine different FTSs were evaluated with respect to the following six factors: impact isolation efficiency, load efficiency, peak of acceleration, peak impact force, total energy absorption, and specific energy absorption. Furthermore, the design of the damping structure provides an indispensable solution for penetrator detection.

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Crashworthiness analysis of foam–filled square column considering strain rate effect of the foam

Cited by 29 publications

References 31 publications

The Effect of Geometrical Non-Linearity on the Crashworthiness of Thin-Walled Conical Energy-Absorbers

The Effect of Geometrical Non-Linearity on the Crashworthiness of Thin-Walled Conical Energy-Absorbers

Experimental research of absorption properties of rigid foam filled circular seamless tube energy absorber under quasi-static axial load

Buffering Performance of High‐Speed Impact Space Penetrator with Foam‐Filled Thin‐Walled Structure

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