2015
DOI: 10.1051/epjconf/20159404032
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Indentation of aluminium foam at low velocity

Abstract: Abstract. The indentation behaviour of aluminium foams at low velocity (10 m/s ∼ 30 m/s) was investigated both in experiments and numerical simulation in this paper. A flat-ended indenter was used and the force-displacement history was recorded. The Split Hopkinson Pressure bar was used to obtain the indentation velocity and forces in the dynamic experiments. Because of the low strength of the aluminium foam, PMMA bar was used, and the experimental data were corrected using Bacon's method. The energy absorptio… Show more

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Cited by 2 publications
(3 citation statements)
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“…5, 15-17. The energy increases with the loading velocity, which agrees with the phenomenon observed in our previous experimental study [20]. However, the difference between the strain energy of the foams with different regularity seems unchanged under different loading velocity.…”
Section: Effect Of Relative Density Of Foams and Loading Velocitysupporting
confidence: 91%
See 1 more Smart Citation
“…5, 15-17. The energy increases with the loading velocity, which agrees with the phenomenon observed in our previous experimental study [20]. However, the difference between the strain energy of the foams with different regularity seems unchanged under different loading velocity.…”
Section: Effect Of Relative Density Of Foams and Loading Velocitysupporting
confidence: 91%
“…The following derivation is similar as presented in Zhu's [5] work. We assume the following relationship can be used in Kelvin foam (19) which can be rewritten as (20) where F is the inverse of function f. We can obtain the following equation after the combination of Eqs. ( 18) and ( 19) (21) where d i is the normalized cell relative density as defined before.…”
Section: Effect Of Regularity On Plastic Behavior Of Voronoi Foammentioning
confidence: 99%
“…The corresponding force is required to tear the low-density porous material at the edges of the indenter. It is believed that this force appears as cracks in the low-density porous material, and such cracks (tear line, cut line, or tear crack) may be generated around the indenter in some cases [18][19][20][21]. In this work, the tearing of the low-density porous material was regarded as a fracture due to shearing.…”
Section: Resultsmentioning
confidence: 95%