Numerical modelling of honeycomb core crush behaviour

Aktay, Levent; Johnson, Alastair; Kröplin, Bernd

doi:10.1016/j.engfracmech.2007.03.008

Cited by 239 publications

(145 citation statements)

References 9 publications

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“…The transverse non-linear response of hexagonal cell honeycomb core due to an out-of-plane crushing load has also been incorporated into various CAI strength prediction models in an idealized form. A good explanation of honeycomb core crushing behavior using experimental and numerical results was presented by Aktay et al [14]. They showed the stages of core crush in Nomex and Aluminum honeycomb cores, including buckling initiation, progressive folding, and finally, densification using experimental examples.…”

Section: A Current Cai Modelsmentioning

confidence: 99%

“…Experimental flatwise core crush results for Nomex material generally show a brittle wall collapse and folding which results in a succession of rising and falling stress resultant for a displacement controlled test [14] [15] [16] [17]. This behavior is averaged to a single stress value, which was selected based on the idealization of core crush experimental results.…”

Section: B Honeycomb Core Behaviormentioning

confidence: 99%

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Compression After Impact on Honeycomb Core Sandwich Panels with Thin Facesheets, Part 2: Analysis

McQuigg

Kapania

Scotti

et al. 2012

53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

3
2
8
0

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A two part research study has been completed on the topic of compression after impact (CAI) of thin facesheet honeycomb core sandwich panels. The research has focused on both experiments and analysis in an effort to establish and validate a new understanding of the damage tolerance of these materials. Part 2, the subject of the current paper, is focused on the analysis, which corresponds to the CAI testings de-

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Section: A Current Cai Modelsmentioning
confidence: 99%

Section: B Honeycomb Core Behaviormentioning
confidence: 99%

Compression After Impact on Honeycomb Core Sandwich Panels with Thin Facesheets, Part 2: Analysis
McQuigg
¹
,
Kapania
²
,
Scotti
³

et al. 2012
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
3
2
8
0
View full text Add to dashboard Cite

show abstract

“…Various research have been conducted to know the mechanical response of honeycomb structures under dissimilar loadings [16].…”

Section: Honeycombmentioning
confidence: 99%

Sandwich Structure Based On Corrugated-Core: A Review
Zaid
¹
,
Rejab
²
,
Mohamed
³

2016
MATEC Web Conf.
29
0
14
0
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Abstract. Sandwich structures are commonly based on polymeric foam and honeycomb core material, for use in lightweight applications such as fuselage in aero plane, hull in marine construction and others. A review of sandwich structure based on corrugated-core is proposed and presented in this paper. Firstly, this paper aims to provide a means of comparing available sandwich structure in industries. Secondly, this paper aims to provide sandwich structure with corrugated-core for future research development efforts in field of sandwich construction. This paper starts with introduction of composite material such as sandwich structure, the advantages of sandwich structure was shown. After that these papers provide the structure of sandwich structure which includes the two faces and the cores. Furthermore, sandwich structure with different cores, which is honeycomb, foam core and corrugated core are discussed. At the end, the paper discussed more on corrugated-core for future research development.

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“…In vehicle crash tests, moving or stationary deformable barriers made of aluminium honeycombs are used to simulate second crashed vehicle, Aktay et al (2008). During the compression of cellular structures, the kinematic energy of a moving mass transforms into the energy of plastic deformation.…”

Section: Introductionmentioning
confidence: 99%

Design, Development and Numerical Analysis of Honeycomb Core With Variable Crushing Strength
Esfahlani¹
2013
American Journal of Engineering and Applied Sciences
1
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A honeycomb core with half-circular cut-away sections at the spine (the adjoining cell walls) is designed and developed and numerically tested under axial dynamic load condition. The parametric study is invoked to identify the effect of various circular cut-away dimensions. In one embodiment a half-circular shaped cuts are removed from the top of the cell where the cell is impacted and its radius decreases toward the trailing edge of the cell. Numerical (FE) analysis was performed using explicit ANSYS/LS-DYNA and LS-DYNA codes to investigate the crushing performance, where impact angles 30° and 90° was combined with velocity of 5:3 m/sec. The crushing strength and internal energy absorption of the modified honeycomb cores with cut-away sections are then monitored to define the design parameters. The representative Ysection (axisymmetric model) is used for numerical analysis which simulates the honeycomb crushing performance. The numerical results of these innovative models show cyclic buckling effect in which crushing strength increases linearly as the rigid wall passes through. The FE results are validated with corresponding published experiments of the original unmodified honeycomb core (without cut-away).

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Numerical modelling of honeycomb core crush behaviour

Cited by 239 publications

References 9 publications

Compression After Impact on Honeycomb Core Sandwich Panels with Thin Facesheets, Part 2: Analysis

Compression After Impact on Honeycomb Core Sandwich Panels with Thin Facesheets, Part 2: Analysis

Sandwich Structure Based On Corrugated-Core: A Review

Design, Development and Numerical Analysis of Honeycomb Core With Variable Crushing Strength

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