Sandwich and Natural fiber composites - A review

Ramakrishnan, G.; Ramnath, B. Vijaya; Vignesh, C.; Vignesh, L.; Perunddevan, T.; VidhyaRajan, M

doi:10.1088/1757-899x/390/1/012067

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…Based on the typical pyramidal truss core, a new type enhanced lattice structure called “Hourglass” truss sandwich structure was designed by a transition process. 25 –27 As shown in Figure 5, the Hourglass truss core is similar to the two-layer pyramidal truss core and has the same inter-node spacing. However, Hourglass truss cores are arranged more sparsely and have smaller slenderness ratio which lead to superior resistance to buckling.…”

Section: Core Structure Designmentioning

confidence: 92%

“…Birman and Kardomateas 26 reviewed modern trends in theoretical developments, novel designs, and modern applications of sandwich structures. Ramakrishnan et al 27 reviewed tested properties, mechanical behavior, and major applications of sandwich structures with natural fiber composites. Abrate and Di 28 reviewed one type of plate theories called equivalent single layer theories, including polynomial theories and no-polynomial displacement fields.…”

Section: Introductionmentioning

confidence: 99%

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Creative design for sandwich structures: A review

Feng

Qiu

Gao

et al. 2020

International Journal of Advanced Robotic Systems

100

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Sandwich structures are important innovative multifunctional structures with the advantages of low density and high performance. Creative design for sandwich structures is a design process based on sandwich core structure evolution mechanisms, material design method, and panel (including core structure and facing sheets) performance prediction model. The review outlines recent research efforts on creative design for sandwich structures with different core constructions such as corrugated core, honeycomb core, foam core, truss core, and folded cores. The topics discussed in this review article include aspects of sandwich core structure design, material design, and mechanical properties, and panel performance and damage. In addition, examples of engineering applications of sandwich structures are discussed. Further research directions and potential applications are summarized.

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Section: Core Structure Designmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Creative design for sandwich structures: A review

Feng

Qiu

Gao

et al. 2020

International Journal of Advanced Robotic Systems

100

View full text Add to dashboard Cite

show abstract

“…A Sandwich-Structured Composite is a particular class of composite materials fabricated by attaching two thin but stiff skins to a lightweight but thick core. The essential characteristics of sandwich composites are high stiffness-to-weight ratio (Ramakrishnan et al, 2018). Due to sandwich structures constructed of various polymeric materials, there are many opportunities for specific items with various characteristics (Biron, 2018).…”

Section: Introductionmentioning

confidence: 99%

Impact Properties of Hemp Natural – Glass Fibers Hybrid Polypropylene Sandwich Composites

Banowati,

Pertama

2023

IJAR

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One way to improve the mechanical properties of composite structures is by hybridizing natural and synthetic fibers. Besides that, combined with sandwich structure composites consists of two relatively strong, thin, and stiff faces separated by a core, for example, balsa, foam, and honeycomb, a relatively thick lightweight. This research develops sandwich composites for structures that have able to withstand high loads and modulus-to-weight ratios but can absorb impacts through impact tests by utilizing the raw material of jute natural fiber, which is abundant in Indonesia so that this research study can predict the effect of variations in the hybridization of hemp natural fiber and the combination of hemp natural fiber with e-glass using polypropylene core sandwich composites by using hand lay-up and vacuum bagging methods. The current impact test results show that the hemp natural-e-glass fibers hybrid sandwich composites get a higher impact strength with a value of 0,019 J/mm² than the hemp-PP honeycomb hybrid sandwich composite with a value of 0,013 J/mm². It shows that by combining e-glass fiber in the composite, it can increase its impact strength and can be a lightweight structural material as being a new alternative material of jute and e-glass natural fiber hybrid sandwich composites with polypropylene cores to substitute conventional materials such as metals which is potential for applications in the automotive, building, and unmanned aerial vehicle industries.

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“…Also due to the thin thickness of the face sheets, they always experience face buckling and local failure modes. Fiber rupture at upper and lower skin edges, core shear fractures, delamination, and face/core debonding are common failures in sandwich structure [31]. The factors that affect the failure modes highly are the strain rate, load direction, and the material types of sandwich components.…”

Section: Introductionmentioning

confidence: 99%

Fracture Resistance of Composite Structurs From Hemp Bio-Fibers

Elzayady

Elghandour

2021

Journal of Advanced Engineering Trends

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Lightweight sandwich structures are used in the aircraft industry because of their high strength-to-weight and stiffness-to-weight ratios. Structural components are often subjected to edge loads in compression or tension. The sandwich structure under the edge compression load exhibits excellent compression capacity. On the contrary of loading under flatwise compression, the sandwich under edge compression undergoes drastic tearing and fracture. The current study is based on experimental work on sandwich-structures made of carbon fiber and natural fiber reinforced face sheets with different core materials. The natural fiber (hemp) is highlighted in the current study to improve the fracture resistance of skins. The hemp-skin demonstrates comparable compression properties to those of carbon fiber under edge compressive load. The skin from hemp has great fracture resistance while the carbon one experienced dramatic fracture, tearing, and delamination. This outcome of the current study, in addition to the lightweight, lowcost ease handling, simple manufacturing, and eco-friendship make the hemp a competitive industrial material in aerospace applications. More details about the manufacturing and the failure modes are discussed as well.

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Sandwich and Natural fiber composites - A review

Cited by 4 publications

References 20 publications

Creative design for sandwich structures: A review

Creative design for sandwich structures: A review

Impact Properties of Hemp Natural – Glass Fibers Hybrid Polypropylene Sandwich Composites

Fracture Resistance of Composite Structurs From Hemp Bio-Fibers

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