Dynamic response of sandwich panels with multi-layered aluminum foam/UHMWPE laminate cores under air blast loading

Cai, Sipei; Liu, Jun; Zhang, Pan; Li, Chunpeng; Cheng, Yuansheng

doi:10.1016/j.ijimpeng.2019.103475

Cited by 47 publications

(9 citation statements)

References 34 publications

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“…Wang et al investigated and optimized graded foam core configured sandwich structures and resulted that the foam core with decreasing density gradient across the thickness from front to back sheet direction ensured the best anti-blast ability and the optimization of sheets and core thickness, and the density of each core decreased the mass up to 24.58% [84]. Cai et al investigated sandwich structures with multi-layered aluminum foam and ultra-high molecular weight polyethylene (UHMWPE) cores and stated that foam core gradation had limited influence on the failure mode and deflection; however, the replacement of an equivalent foam layer with UHMWPE could prevent petalling failure mode and reduce the deflection [85,86]. Improvements in additive manufacturing technologies enables the production and tailoring of the graded lattice structures, and current studies showed that the implementation and optimizing the grading cores increases the blast resistance ability of the sandwich panels.…”

Section: The Effect Of Core Gradingmentioning

confidence: 99%

The effect of geometrical parameters on blast resistance of sandwich panels—a review

Gülcan¹,

Günaydın²,

Tamer

2023

Funct. Compos. Struct.

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Many engineering structures, especially the defense applications, need to be reinforced against blast loads due to a nearby explosion. Today, much more attention needs to be given to this issue because of increased exposure to explosions, and natural disasters. Different solutions have been used in the literature to mitigate blast loading effects. One of these applications, sandwich panels, are good candidates for blast loading applications. In a sandwich panel structure, several parameters have considerable effects on the deflections, deformations, and the energy absorption capability. The most important of these parameters are: i) the material and thickness of the front and back face sheets and core; ii) core density and grading; iii) core and face sheet types; iv) filling and stiffening strategies of the core; v) radius of curvature of the panel; vi) mass of explosive charge; and vii) standoff distance. The aim of this paper is to review these critical aspects of blast loading of sandwich panels to provide an overall insight into the state of the art of the application.

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Section: The Effect Of Core Gradingmentioning

confidence: 99%

The effect of geometrical parameters on blast resistance of sandwich panels—a review

Gülcan¹,

Günaydın²,

Tamer

2023

Funct. Compos. Struct.

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“…The absorbed impact energy also increased, though not as significantly as the toughness and stiffness. Cai et al [140] examined the response of sandwich structures that used a multi-layered hybrid core to an air blast. The panels included multi-layered aluminium foam core sandwich panels, multi-layered hybrid aluminium foam/UHMWPE laminates core sandwich panels, and panels with papery UHMWPE laminates (PP).…”

Section: Hybrid Core Designmentioning

confidence: 99%

Enhancing mechanical properties of cellular core sandwich panels: a review of topological parameters and design improvements

Charkaoui,

Hassan,

Bahroun

2023

Mater. Res. Express

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Sandwich panels’ exceptional mechanical properties and low density, owing to their multifunctional characteristics and innovative design, made them a popular choice in numerous industries. Sandwich panels with cellular cores are known for their exceptional energy absorption properties, which make them effective energy absorbers for high-impact scenarios such as accidents or explosions. For advancing research on sandwich panels, it is vital to develop innovative designs that can enhance their energy absorption and flexural stiffness. This review outlines the most essential topological parameters that influence the mechanical properties of cellular core structures. This paper gives insight into recent advancements related to optimizing sandwich panel structures for various engineering applications. The topological parameters investigated by researchers include core structure, thickness, number of layers, and material. The choice of core material governs the overall mechanical behavior of the panel. In this paper, various structures, including foam, honeycomb, lattice, corrugated, bioinspired, and various materials, are compared. Functionally graded structures were also explored in the literature as they can significantly optimize the response of sandwich panels in high and low-velocity impact applications. Similarly, a multi-layered core structure can enhance the total stiffness and specific energy absorption of the panel. 

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“…Ultra-high molecular weight polyethylene (UHMWPE) fiber is a high-strength, high-modulus and high-performance fiber, which has excellent abrasion resistance, impact resistance and cutting resistance, chemical resistance and low temperature resistance. Compared to Kevlar fiber, UHMWPE fiber has lower density and higher strength, so it has been used in the field of lightweight protection due to their excellent physical and mechanical properties [1]. Therefore, fiber laminate materials have been used widely in the aerospace industry, weapons industry, energy protection departments etc.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on ballistics resistance of UHMWPE fiber laminates

Zhou

Zhu

Jiang

et al. 2022

J. Phys.: Conf. Ser.

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To study the application of ultra-high molecular weight polyethylene fiber (UHMWPE) laminates in light protection field, the ballistic test was used to study the ballistic resistance of UHMWPE fiber materials. In the experiment, 9mm standard bullets were launched by a revolver pistol and 92 type pistol to penetrate the fiber laminates respectively, and the initial velocity of the bullet was recorded by the infrared tachometer. The influence of the areal density, the number of layers, the incident angle and the initial velocity on the protective properties of the fiber laminates were discussed, meanwhile, the microscopic characteristics of the failure mode of the fiber laminates were studied by stereomicroscope. The results show that the areal density and the layer number have obvious influence on the ballistic resistance of the fiber laminates, and the influence of the two materials should be taken into account. In the non-penetrating condition, the total deformation of the fiber laminates is large and the failure of the fiber bundle is the main failure mode. And when penetrated completely, the tensile fracture of fiber laminate material is the main failure mechanism. The study of this paper provides experimental reference for the structural design of UHMWPE fiber laminates.

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Dynamic response of sandwich panels with multi-layered aluminum foam/UHMWPE laminate cores under air blast loading

Cited by 47 publications

References 34 publications

The effect of geometrical parameters on blast resistance of sandwich panels—a review

The effect of geometrical parameters on blast resistance of sandwich panels—a review

Enhancing mechanical properties of cellular core sandwich panels: a review of topological parameters and design improvements

Experimental investigation on ballistics resistance of UHMWPE fiber laminates

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