On compressive properties of composite sandwich structures with grid reinforced honeycomb core

Sun, Zhi; Shi, Shanshan; Gao, Xu; Hu, Xiao; Chen, Haoran

doi:10.1016/j.compositesb.2016.03.054

Cited by 135 publications

(52 citation statements)

References 26 publications

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“…Thus, it indicates that KFRP specimens were stiffest, and able to absorb and sustain more load. A similar conclusion was proposed by Zhi Sun et al [17], whereby higher peak load indicates higher stiffness. Besides, stiffer material deforms less with the ability to tolerate higher impact load [18].…”

Section: A Effects Of Different Nominal Impact Energies and Stackingsupporting

confidence: 85%

Impact Strength of Glass/Kevlar Fiber Hybrid Composites with Various Stacking Sequences and Impact Energies

Shaari*,

Nadarajah,

Shaari

et al. 2019

IJEAT

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Hybrid composites have been considered as modern materials for many engineering applications, yet there is still a major concern on the influence of stacking sequence configuration in hybrid composite laminates especially under impact loading. Therefore, the focus of this paper is to determine the optimized stacking sequence of glass/Kevlar fiber hybrid composite laminates under impact loading. Hybrid composite laminates were fabricated using vacuum bagging method with four different stacking sequences known as H1, H2, H3 and H4. Low velocity drop weight impact test (ASTM D7136) was conducted using a hemispherical nose impactor diameter of 12 mm with a mass of 6 kg at impact energy levels of 10 J, 20 J, 30 J, and 40 J. From the results obtained, H3 specimen which has a stacking sequence of glass fiber in the exterior part with Kevlar fiber in the interior part was concluded as the optimized stacking sequence with better impact resistance properties. H3 specimen recorded a higher value in peak load, maximum initiation energy, high impact strength, high strength to weight ratio and high total energy absorbed to weight ratio. In addition, it was observed that H3 specimen has less damaged area compared to H1, H2, and H4 specimens. This study contributes knowledge on the impact resistance properties of hybrid composite laminates which will be much useful for material selection and product development.

show abstract

Section: A Effects Of Different Nominal Impact Energies and Stackingsupporting

confidence: 85%

Impact Strength of Glass/Kevlar Fiber Hybrid Composites with Various Stacking Sequences and Impact Energies

Shaari*,

Nadarajah,

Shaari

et al. 2019

IJEAT

View full text Add to dashboard Cite

show abstract

“…Honeycomb sandwich composites are extensively used in aerospace and automotive applications because of their moisture‐resistant hollow structure that provides an impressive impact resistance . Honeycomb cores are also continuously being reinforced with other materials such as metallic tubes and aluminum grids to further improve properties like blast resistance, energy absorption, and stiffness, which make them ideal for aerospace applications. Egg‐ and pyramid‐shaped honeycomb cores from a previous study have shown superior specific energy absorption compared to other honeycomb cores with low densities .…”

Section: Sandwich Structuresmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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Sandwich composites with a polyurethane foam (PUF) core have become a versatile set of materials with applications ranging from basic construction elements to advanced engineering materials. This diverse range of applications has provided these sandwich materials with a distinctive position in today's engineering world. This review focuses on the broad research that has been carried out on PUF core‐based sandwich composites over the years—especially in the last decade. Thorough details have been presented focusing on basic PUF core sandwich structures, advanced PUF core sandwich composites with different kinds of reinforcements and complex structures such as hybrid sandwich panels. All the research presented here has been categorized carefully, such as the types of materials used in various studies, the types of reinforcements and testing techniques used, including mechanical, electrical, dynamic, thermal and acoustic methods etc. Comparisons have also been made based on similar materials, similar testing procedures and similar application areas. Research areas have been highlighted by giving a deep insight into the most promising research, manufacturing techniques and improvement procedures. Major consumption areas and application sectors for PUF core sandwich composites have also been discussed in this review. Finally, conclusions have been made based on the results found from a literature investigation.

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“…After adding stiffeners, the edgewise maximum load increased due to the less debonding and crack extension. Thomsen et al [11][12][13][14][15] studied the buckling of sandwich plate with honeycomb core under edgewise load and the theoretical solution to predict buckling load. Honeycomb sandwich structure is also prone to interface debonding and panel buckling under edgewise load, so the adhesive simulation is equally important.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of Adhesive Material for Sandwich Panel under Edgewise Compression Condition

et al. 2020

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In order to study the interfacial adhesive material simulation method of a sandwich structure with aluminum alloy panels and a low-density foam core under edgewise compression condition, two finite element models were defined using material model no. 185 (MAT 185) adhesive element and tiebreak contact, respectively, by LS-DYNA. Under the conditions of different loading rates, and element sizes, the effects of peak load, energy absorption, failure mode of adhesive layer and the influence degree of the changing condition on the calculated results were compared between the two models, and then compared with the experiment results and theoretical results. The higher the loading rate was, or the smaller the element size was, the higher the peak load was. The simulation results obtained using MAT 185 were closer to the experimental results under the edgewise compression condition.

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On compressive properties of composite sandwich structures with grid reinforced honeycomb core

Cited by 135 publications

References 26 publications

Impact Strength of Glass/Kevlar Fiber Hybrid Composites with Various Stacking Sequences and Impact Energies

Impact Strength of Glass/Kevlar Fiber Hybrid Composites with Various Stacking Sequences and Impact Energies

A review on recent advances in sandwich structures based on polyurethane foam cores

Simulation Study of Adhesive Material for Sandwich Panel under Edgewise Compression Condition

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