Experimental investigation of in-plane and out-of-plane crushing of aluminum honeycomb

Khan, Muhammad Kashif; Baig, Taha Nadeem; Mirza, S.

doi:10.1016/j.msea.2012.01.070

Cited by 143 publications

(72 citation statements)

References 12 publications

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“…Meso-scale inhomogeneous deformations, such as shear banding [10,11], localised crushing [12,13] and progressive folding [14,15], are common in cellular materials under compression. There are several methods to quantify the localised deformation at the meso-scale.…”

Section: Introductionmentioning

confidence: 99%

Image-based correlation between the meso-scale structure and deformation of closed-cell foam

Sun

Zhang

Shao

et al. 2017

Materials Science and Engineering: A

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In the correlation between structural parameters and compressive behaviour of cellular materials, previous studies have mostly focused on averaged structural parameters and bulk material properties for different samples. This study focuses on the meso-scale correlation between structure and deformation in a 2D foam sample generated from a computed tomography slice of Alporas TM foam, for which quasi-static compression was simulated using 2D image-based finite element modelling. First, a comprehensive meso-scale structural characterisation of the 2D foam was carried out to determine the size, aspect ratio, orientation and anisotropy of individual cells, as well as the length, straightness, inclination and thickness of individual cell walls. Measurements were then conducted to obtain the axial distributions of local structural parameters averaged laterally to compression axis. Second, the meso-scale deformation was characterised by cell-wall strain, cell area ratio, digital image correlation strain and local compressive engineering strain. According to the results, the through-width sub-regions over an axial length between the average (lower bound) and the maximum (upper bound) of cell size should be used to characterise the meso-scale heterogeneity of the cell structure and deformation. It was found that the first crush band forms in a sub-region where the ratio of cell-wall thickness to cell-wall length is a minimum, in which the collapse deformation is dominated by the plastic bending and buckling of cell walls. Other 2 morphological parameters have secondary effect on the initiation of crush band in the 2D foam.The finding of this study suggests that the measurement of local structural properties is crucial for the identification of the "weakest" region which determines the initiation of collapse and hence the corresponding collapse load of a heterogeneous cellular material.

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Section: Introductionmentioning

confidence: 99%

Image-based correlation between the meso-scale structure and deformation of closed-cell foam

Sun

Zhang

Shao

et al. 2017

Materials Science and Engineering: A

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“…The out-of-plane stiffness and strength of periodic honeycombs are much greater than those along the in-plane directions [4,7,11]. For example, the out-of-plane compressive strength of aluminium hexagonal honeycomb is 2 times greater than the in-plane compressive strength [11].…”

Section: Introductionmentioning

confidence: 99%

“…For example, the out-of-plane compressive strength of aluminium hexagonal honeycomb is 2 times greater than the in-plane compressive strength [11]. Extensive studies on the out-of-plane compressive behaviour of regular honeycombs have been reported in the literature [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Dynamic compressive response of additively manufactured AlSi10Mg alloy hierarchical honeycomb structures

Zhang

Liu

Ren

et al. 2018

Composite Structures

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“…Khan et al had found that the out-of-plane was the strongest direction which absorbed significant amount of energy during deformation [1]. Therefore, it is used in high-speed rail train, aircraft landing gear, instruments packaging, etc.…”

Section: Introductionmentioning

confidence: 99%

Energy Absorption and Crush Behavior of the Layered Aluminum Honeycomb

Luo¹,

Shi²,

Chen³

et al. 2017

TOCIEJ

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Abstract:To investigate the energy absorption characteristics and crush behavior of layered aluminum honeycomb, the experiments of layered aluminum honeycomb structure under quasi-static load had been carried out, mainly includes single, double, triple, four layer combinations. The results showed that: the peak force and the mean plateau force of single-layer aluminum honeycomb structure are proportional to the surface density, however they decline slightly with increase of the height; unequal height double layered aluminum honeycomb structure has more advantage in cushion performance; with the increase of layers, the MP ratio will decrease; the combination of placing soft layer between hard layers is better than the others.

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Experimental investigation of in-plane and out-of-plane crushing of aluminum honeycomb

Cited by 143 publications

References 12 publications

Image-based correlation between the meso-scale structure and deformation of closed-cell foam

Image-based correlation between the meso-scale structure and deformation of closed-cell foam

Dynamic compressive response of additively manufactured AlSi10Mg alloy hierarchical honeycomb structures

Energy Absorption and Crush Behavior of the Layered Aluminum Honeycomb

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