Numerical Investigation of Different Core Topologies in Sandwich-Structured Composites Subjected to Air-Blast Impact

Walkowiak, Marcel; Reinicke, Ulf; Anders, Denis

doi:10.3390/app12189012

Cited by 6 publications

(2 citation statements)

References 64 publications

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“…However, the employed CONWEP framework which is already based on experimental investigation partially fills this gap. A similar approach was used by Walkowiak et al [28] where they investigated different core topologies in sandwich panels subjected to air blast loading. However, the distinguishing feature of the present study is the analysis of different loading regimes in terms of in-plane and axial loading directions.…”

Section: Introductionmentioning

confidence: 99%

Air blast response of sandwich structures with auxetic cores under in-plane and axial loadings

Günaydın¹,

Gülcan²

2023

Res. Eng. Struct. Mater.

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Blast loading due to an explosion nearby may generate severe damages on the target. Therefore, engineering structures need to be designed by considering blast loads due to terrorist attacks, accidental explosions or natural disasters. Sandwich structures are good candidates for blast loading applications and core section of these panels are very important to absorb blast loads. This study focused on blast resistance of sandwich structures with lattice core designs. Sandwich panels with honeycomb cores and re-entrant and double arrowhead auxetic cores, which are common and easy to produce in comparison to other type of lattice structures, were used to investigate the impact of core design on front and back face sheet thicknesses, total absorbed energy and maximum stress under in-plane and axial loading due to an explosion. Results revealed that sandwich structures absorb more energy when loaded along axial direction than in-plane direction. According to the simulation results, double arrowhead core outperformed by showing the lowest stress, front and back face displacement and the highest total energy absorption.

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Section: Introductionmentioning

confidence: 99%

Air blast response of sandwich structures with auxetic cores under in-plane and axial loadings

Günaydın¹,

Gülcan²

2023

Res. Eng. Struct. Mater.

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“…Osička et al [8] measured the cutting force during the machining of hardened steel with cubic boron nitride tools. By means of the finite element code ABAQUS/Explicit, Walkowiak et al [9] presented a numerical study of the structural behavior of prismatic and lattice core topologies in sandwich-structured composites subjected to air-blast impact. Danfá et al [10] experimentally showed that powder TiO 2 impregnated in a ceramic material can improve liquid wastewater treatment via the photocatalysis process.…”

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confidence: 99%

Special Issue on Selected Papers in the Section Materials 2022

Zivieri

2023

Applied Sciences

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Load bearing investigations on novel Acrylonitrile butadiene styrene‐carbon quantum dots 3D printed core/bamboo fiber polyester sandwich composite for structural applications

Alshahrani,

Arun Prakash

2023

Polymer Composites

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In this research, a novel 3D printed core and natural fiber polyester composite skin based thick sandwich panel was developed as structural material for domestic and commercial infrastructure applications. The main objective of this research was to analyze how the carbon quantum dots (C‐dots) from agriculture waste strengthen the softer thermoplastic acrylonitrile butadiene styrene (ABS) core and overall sandwich panel's load bearing properties. The core of sandwich was prepared using additive manufacturing method whereas the skin was developed by hand layup method. According to the results the C‐dots of 20 phr into the ABS improved the compression properties of core in both flatwise and edgewise directions. A highest tensile and flexural strength of skin was observed to be 114 and 146 MPa respectively. The addition of C‐dots improved the load bearing effect and also restricts the deformation against load. This performance improved novel 3D printed core and bamboo fiber skin sandwich could be used as an alternative construction and building material where the commercial plywood and other forms of powder wood face damages via weather and termite issues.Highlights Higher filler volume of up to 20 phr of carbon quantum dots in acrylonitrile butadiene styrene (ABS) were developed Novel 3D printed thin walled core of 1 mm diameter was developed using carbon quantum dots and ABS. Bamboo fiber‐polyester skin with highest tensile strength of 114 MPa was developed. Improved flatwise compression and tensile strength were achieved for ABS core with 20 phr of Carbon quantum dots Flexural strength and edgewise compression properties were improved with 20 phr of Carbon quantum dots in ABS

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Numerical Investigation of Different Core Topologies in Sandwich-Structured Composites Subjected to Air-Blast Impact

Cited by 6 publications

References 64 publications

Air blast response of sandwich structures with auxetic cores under in-plane and axial loadings

Air blast response of sandwich structures with auxetic cores under in-plane and axial loadings

Special Issue on Selected Papers in the Section Materials 2022

Load bearing investigations on novel Acrylonitrile butadiene styrene‐carbon quantum dots 3D printed core/bamboo fiber polyester sandwich composite for structural applications

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