Experimental and numerical analyses of the axial crushing behaviour of hat sections partially filled with aluminium foam

Wang, Q; Zhai, Fan; Song, Hang; Gui, Liang Jin

doi:10.1533/ijcr.2005.0368

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…(11) reveals that the critical foam relative density for efficient partial foam filling is inversely proportional to the box wall thickness, interaction coefficient and foam material strength and directly proportional to box material strength and width. In a previous study [18], the energy absorption of partially foam filled single and double hat steel sections was reported as function of foam filler length. Present results further show that the efficiency of partial foam filling is also a function of box wall thickness and foam filler relative density.…”

Section: Resultsmentioning

confidence: 99%

“…The interaction effect was attributed to the formation of the extremely densified region near the tube wall. An appropriate foam filler length in partially foam-filled columns (the foam filler length is smaller than the column length) was shown to provide energetically more efficient structures, in addition to a lower initial peak force than the fully foam-filled columns [18]. The present report is a part of an on-going experimental and numerical research program on the effect of material and geometrical parameters on the energy absorption behavior of partially Al foam filled commercial 1050H14 Al automobile crash boxes and focuses on the effects of crash box thickness and foam filler density on the energy absorption of partial foam filling, which has not been investigated, yet.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Partial Al foam filling of commercial 1050H14 Al crash boxes: The effect of box column thickness and foam relative density on energy absorption

Toksoy

Güden

2010

Thin-Walled Structures

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Partial Al foam filling of commercial 1050H14 Al crash boxes: The effect of box column thickness and foam relative density on energy absorption

Toksoy

Güden

2010

Thin-Walled Structures

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“…Aluminium foam had very high mass specific energy absorption capacity compared to steel hat sections [22] , it is a good candidate for energy absorbing structure and filling material.…”

Section: )mentioning

confidence: 99%

“…Researches [20][21][22] showed that aluminum foam filling can improve the energy absorption capacity up to 30% to 50%. To make aluminium foam widely used in transportation industry, its characteristics for energy absorption structures in vehicle should be investigated.…”

Section: Introductionmentioning

confidence: 99%

Static and Dynamic Crushing Behaviors of Aluminum Foam

Wang

Niu

Wang³

et al. 2011

MSF

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Quasi-static and dynamic axial crushing tests were carried out to investigate the energy absorption capacity of aluminum foam with several densities. First, aluminum foam samples with three densities were crushed quasi-statically to study their compression characteristics, the stress strain relationship curves and energy absorption capacities were achieved from the test results; then dynamic crushing tests were carried out to check the crushing behaviors of the corresponding samples; finally, the energy absorption capacities of tested samples were compared. According to the tests results, all the aluminum foam samples showed very good isotropy and very high mass specific energy absorption capacities. For the crushing tests, the dynamic crushing behaviors were very similar to the static ones, which meant aluminum foam was insensitive to the crash velocity tested.

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“…No strain rate effect was considered since the bending test was a quasi-static compress. [15] Since spot weld failures were no considered in this paper, the spot welds were simulated as rigid connections. One spot weld existed of a set of nine nodes and covered a square area of 7 mm × 7 mm.…”

Section: Finite Element Model Configurationmentioning

confidence: 99%

Numerical Simulation on Bending Characteristics of Aluminium Foam Filled Thin-Walled Tubes

Wang

Niu

Wang³

et al. 2011

AMR

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Different aluminum foam filling lengths were used to increase the bending energy absorbing capacity of the popularly used hat sections. Bending energy-absorption performance of the thin-walled tubes was numerically studied by explicit non-linear software LS-Dyna. First empty hat section subjected to quasi-static bending crushing was simulated, then structures with different aluminium foam filling lengths were calculated, finally energy absorption capacity of these structures were compared. Calculation results showed that, the internal energy absorbed and mass specific energy absorption capacity of foam filled thin walled structures were increased significantly compared to the empty sections. The reason of the improvement was mainly due to the contact of the aluminium foam and the structure. Aluminium foam filling is a promising method for improving lateral energy absorbing capacity of thin-walled sections.

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Experimental and numerical analyses of the axial crushing behaviour of hat sections partially filled with aluminium foam

Cited by 13 publications

References 11 publications

Partial Al foam filling of commercial 1050H14 Al crash boxes: The effect of box column thickness and foam relative density on energy absorption

Partial Al foam filling of commercial 1050H14 Al crash boxes: The effect of box column thickness and foam relative density on energy absorption

Static and Dynamic Crushing Behaviors of Aluminum Foam

Numerical Simulation on Bending Characteristics of Aluminium Foam Filled Thin-Walled Tubes

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