The effect of core thickness on the flexural behaviour of aluminium foam sandwich structures

M. Styles; P. Compston; S. Kalyanasundaram

doi:10.1016/j.compstruct.2006.07.002

The effect of core thickness on the flexural behaviour of aluminium foam sandwich structures

M. Styles^*, P. Compston, S. Kalyanasundaram

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

126 Citations (Scopus)

Abstract

The effect of core thickness on the deformation mechanism of an aluminium foam core/thermoplastic composite facing sandwich structure under 4-point bending was investigated. Full field strain analysis and visual observations show a number of failure mechanisms between the different core thicknesses. High strain concentrations were observed in each sample thickness corresponding to the particular region of failure. The thinner samples exhibited skin wrinkling and fracture, and some core cracking and crushing while the thicker samples failed due to core indentation. Increasing the skin thickness eliminated the incidence of core indentation. Instead, significant core shear cracking was observed.

Original language	English
Pages (from-to)	532-538
Number of pages	7
Journal	Composite Structures
Volume	80
Issue number	4
DOIs	https://doi.org/10.1016/j.compstruct.2006.07.002
Publication status	Published - Oct 2007

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title = "The effect of core thickness on the flexural behaviour of aluminium foam sandwich structures",

abstract = "The effect of core thickness on the deformation mechanism of an aluminium foam core/thermoplastic composite facing sandwich structure under 4-point bending was investigated. Full field strain analysis and visual observations show a number of failure mechanisms between the different core thicknesses. High strain concentrations were observed in each sample thickness corresponding to the particular region of failure. The thinner samples exhibited skin wrinkling and fracture, and some core cracking and crushing while the thicker samples failed due to core indentation. Increasing the skin thickness eliminated the incidence of core indentation. Instead, significant core shear cracking was observed.",

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author = "M. Styles and P. Compston and S. Kalyanasundaram",

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AU - Styles, M.

AU - Compston, P.

AU - Kalyanasundaram, S.

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Y1 - 2007/10

N2 - The effect of core thickness on the deformation mechanism of an aluminium foam core/thermoplastic composite facing sandwich structure under 4-point bending was investigated. Full field strain analysis and visual observations show a number of failure mechanisms between the different core thicknesses. High strain concentrations were observed in each sample thickness corresponding to the particular region of failure. The thinner samples exhibited skin wrinkling and fracture, and some core cracking and crushing while the thicker samples failed due to core indentation. Increasing the skin thickness eliminated the incidence of core indentation. Instead, significant core shear cracking was observed.

AB - The effect of core thickness on the deformation mechanism of an aluminium foam core/thermoplastic composite facing sandwich structure under 4-point bending was investigated. Full field strain analysis and visual observations show a number of failure mechanisms between the different core thicknesses. High strain concentrations were observed in each sample thickness corresponding to the particular region of failure. The thinner samples exhibited skin wrinkling and fracture, and some core cracking and crushing while the thicker samples failed due to core indentation. Increasing the skin thickness eliminated the incidence of core indentation. Instead, significant core shear cracking was observed.

KW - Aluminium foam

KW - Deformation

KW - Flexural loading

KW - Sandwich

KW - Strain distribution

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DO - 10.1016/j.compstruct.2006.07.002

M3 - Article

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VL - 80

SP - 532

EP - 538

JO - Composite Structures

JF - Composite Structures

IS - 4

ER -

The effect of core thickness on the flexural behaviour of aluminium foam sandwich structures

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