Large inelastic response of unbonded metallic foam and honeycomb core sandwich panels to blast loading

Theobald, M.D.; Langdon, G.S.; Nurick, G.N.; Pillay, Seshini; Heyns, A.M.; Merrett, R.P.

doi:10.1016/j.compstruct.2010.03.002

Cited by 89 publications

(29 citation statements)

References 21 publications

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“…The compromises between load transfer through the core and improved energy absorption were discussed [10]. Theobald et al [11] investigated the influence of core type and skin thickness on the air blast resistance of unbonded sandwich panels with steel surface plates. The performance of the panels was compared with that exhibited by a monolithic steel plate with a comparable areal density.…”

Section: Introductionmentioning

confidence: 99%

The influence of core density on the blast resistance of foam-based sandwich structures

Hassan

Guan

Cantwell

et al. 2012

International Journal of Impact Engineering

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Section: Introductionmentioning

confidence: 99%

The influence of core density on the blast resistance of foam-based sandwich structures

Hassan

Guan

Cantwell

et al. 2012

International Journal of Impact Engineering

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“…Considerable research has been conducted on the study of protective structures aiming at reducing the transmitted pressure to the main structure. Sacrificial cladding structures receive a lot of attention [1][2][3][4][5][6][7][8][9][10]. They consist of a crushable core between the main structure and a front plate.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Effectiveness of Sacrificial Cladding Using Polymeric Foams as Crushable Core with a Simply Supported Steel Beam

Ousji

Belkassem

Louar

et al. 2016

Advances in Civil Engineering

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The present paper focuses on the study of the effectiveness of the sacrificial cladding using polymeric foam as crushable core to reduce the delivered blast energy using a simplified structure. The latter consists of a simply supported steel beam under a localized blast load. The tested sacrificial cladding has a cross-sectional area of 80 × 80 mm2. The effect of the front plate mass and the crushable core properties (plateau stress and thickness) is studied. Three polymeric foams are investigated: (a) the expanded polystyrene foam (PS13) with a density of 13 kg/m3, (b) the closed-cell polyurethane (PU30) with a density of 30 kg/m3, and (c) the open-cell polyurethane (PU50) with a density of 50 kg/m3. Four front plate masses are used: 144, 188, 336, and 495 g. All possible combinations are tested to determine their absorption capacity. The obtained results show that the absorption capability increases by increasing the front plate mass, the plateau stress, and the thickness of the crushable core. The open-cell polyurethane PU50 performs better. Disintegration problems are observed on the expanded polystyrene PS13 after the end of the compression process.

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“…In literature, many studies have been performed about mechanical responses of honeycomb sandwich structures under ballistic and high velocity impact loads [1][2][3][4][5][6][7][8], however, there is no study which is about a sandwich structure reinforced by FGM. Because of the honeycomb sandwich structures reinforced by functionally graded plates can be used for impacted environment under severe conditions as ballistic armour, it is very important to know the ballistic responses of this type structures.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigations on the Ballistic Performance of Honeycomb Sandwich Structures Reinforced by Funcionally Graded Plates

Güneş

Arslan

Apalak

et al. 2014

Proceedings of the 13th International Symposium on Multiscale, Multifunctional and Functionally Graded Materials

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This study investigates damage mechanism and deformation of honeycomb sandwich structures reinforced by functionally graded plates under ballistic impact effect by means of explicit dynamic analysis using ANSYS LS-DYNA. The honeycomb sandwich structures consisted of two identical functionally graded (FG) facesheets having different material compositions through the plate thickness and an aluminum honeycomb core. The functionally graded facesheets were composed of ceramic (SiC) and metal (Al6061) phases. The through-thickness mechanical properties of facesheets were determined based on a power-law distribution of the volume fraction of the constituents. The locally effective material properties were evaluated using homogenization method which based on the Mori-Tanaka scheme. In the analyses, theoretical models which based on micro structural model of functionally graded materials were used. The effect of material composition of functionally graded facesheets on the ballistic performance of honeycomb sandwich structures was investigated and the penetration and perforation threshold energy values which are the most considerable parameters on ballistic performance and ballistic limit of the sandwich structures were determined.

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Large inelastic response of unbonded metallic foam and honeycomb core sandwich panels to blast loading

Cited by 89 publications

References 21 publications

The influence of core density on the blast resistance of foam-based sandwich structures

The influence of core density on the blast resistance of foam-based sandwich structures

Experimental Study of the Effectiveness of Sacrificial Cladding Using Polymeric Foams as Crushable Core with a Simply Supported Steel Beam

Numerical Investigations on the Ballistic Performance of Honeycomb Sandwich Structures Reinforced by Funcionally Graded Plates

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