Static and dynamic crushing of circular aluminium extrusions with aluminium foam filler

Hanssen, A.G.; Langseth, Magnus; Hopperstad, Odd Sture

doi:10.1016/s0734-743x(99)00170-0

Cited by 400 publications

(179 citation statements)

References 19 publications

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“…5(a) and (b). A similar deformation behavior was also previously observed in empty Al tubes and it was proposed to be due to the influence of the axisymmetric trigger on the first fold [2]. Totally 11-12, 8-9 and 5-6 diamond folds formed in 50, 40 and 27 mm long Al empty tubes, respectively.…”

Section: Empty Tubessupporting

confidence: 83%

“…Studies on crushing behavior of Al honeycomb and foam filled box columns also showed that the effect of filling on the column crushing load was similar when the strong axis of honeycomb was through and normal to the compression axis, proving that both axial and transverse strength of the filler were effective in increasing the crushing load of filled tube [6]. Hannsen et al [2,4] developed an equation for the average crushing load of foam filled (P af ) columns by including contributions of the average crushing load of empty tube (P ae ), foam plateau stress (r pl ) and interaction effect. The equation was found to be well agreed with experimental results and is given as…”

Section: Introductionmentioning

confidence: 97%

“…It has been shown that when aluminum and steel metal tubes are filled with light weight core materials such as Al closed cell foams, there exists an interaction effect between tube wall and foam filler [1][2][3][4][5][6]. The crushing loads of foam filled tubes are therefore found to be higher than the sum of the crushing loads of foam (alone) and tube (alone) mainly due to this effect.…”

Section: Introductionmentioning

confidence: 99%

“…Studies on the crushing behavior of foam filled tubes were particularly aimed at determining the effect of foam filling on the average crushing load and the specific energy absorption [1,2,5,[8][9][10]. In designing with foam filled tubes, knowledge of upper and lower limits of the strengthening may be however required for the accurate prediction of the specific energy absorption of any tube-filler combination.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Predicting energy absorption in a foam-filled thin-walled aluminum tube based on experimentally determined strengthening coefficient

2006

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The energy absorption in a foam-filled thin-walled circular Al tube was investigated based on the experimentally determined strengthening coefficient of filling using Al and polystyrene closed-cell foams with three different densities. Foam filling was found to change the deformation mode of tube from diamond (empty tube) into concertina, regardless the foam type and density used. Although foam filling resulted in higher energy absorption than the sum of the energy absorptions of the tube alone and foam alone, it was not effective in increasing the specific energy than simply thickening the tube wall. It was shown that for efficient foam filling an appropriate foam-tube combination must be selected by taking into account the magnitude of strengthening coefficient of foam filling and the foam filler plateau load.

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Section: Empty Tubessupporting

confidence: 83%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Predicting energy absorption in a foam-filled thin-walled aluminum tube based on experimentally determined strengthening coefficient

2006

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“…6c and d. The switch in the deformation mode was attributed to the wall thickening effect of foam filling [25]. It is noted that the deformed shapes and load-displacement curves of FEM show good agreement with the experimental results.…”

Section: Resultssupporting

confidence: 55%

Modeling the progressive axial crushing of foam-filled aluminum tubes using smooth particle hydrodynamics and coupled finite element model/smooth particle hydrodynamics

et al. 2008

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As alternatives to the classical finite element model (FEM), a meshless smooth particle hydrodynamics (SPH) method, in which the discrete particles represent a solid domain, and a coupled FEM/SPH modeling technique were investigated for the numerical simulation of the quasi-static axial crushing of polystyrene foam-filled aluminum thin-walled aluminum tubes. The results of numerical simulations, load-deformation histories, fold lengths and specific absorbed energies, were found to show satisfactory correlations with those of experiments and FEM. The results further proved the capabilities of the SPH Method and coupled FEM/SPH modeling technique in predicting the crushing behavior of foam-filled thin-walled tubes.

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Axial Impact Performances of Composite Aluminum Foam Tubes

Wang,

Xu,

Zhang

et al. 2024

Adv Eng Mater

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An improved melt foaming method is employed to fabricate composite aluminum foam tubes (CAFTs) with varying diameter ratios, achieving metallurgical bonding between the aluminum foam and aluminum tubes. Based on the structural characteristics of aluminum foam‐filled tubes and traditional numerical formula for calculating the energy absorption properties of metal foams, a new calculation formula is proposed to accurately evaluate energy absorption performance of CAFTs under axial load, enabling more precise numerical calculation of total energy absorption. Furthermore, drop weight impact tests and finite element simulations are conducted to investigate the axial impact performance and deformation mechanism of CAFTs. The influence of diameter ratio on crashworthiness and energy absorption performance is also analyzed. As the diameter ratios decrease, both the impact resistance and total energy absorption of CAFTs increase, while the degree of tube damage gradually decreases. Moreover, finite element simulation results demonstrate that metallurgical combination between aluminum foam and aluminum tubes effectively transfers stress to thin‐walled tubes with better load‐bearing performance, preventing concentrated collapse of aluminum foam core. Additionally, the presence of aluminum foam provides robust restraint against deformation or rupture in thin‐walled tubes.

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Static and dynamic crushing of circular aluminium extrusions with aluminium foam filler

Cited by 400 publications

References 19 publications

Predicting energy absorption in a foam-filled thin-walled aluminum tube based on experimentally determined strengthening coefficient

Predicting energy absorption in a foam-filled thin-walled aluminum tube based on experimentally determined strengthening coefficient

Modeling the progressive axial crushing of foam-filled aluminum tubes using smooth particle hydrodynamics and coupled finite element model/smooth particle hydrodynamics

Axial Impact Performances of Composite Aluminum Foam Tubes

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