Out-of-plane effective shear elastic properties of a novel cellular core for sandwich structures

Velea, Marian N.; Wennhage, Per; Lache, Simona

doi:10.1016/j.matdes.2011.12.017

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…The novel core named ExpaAsym was proposed to obtain an open-cell structure in sandwich panels, which has a very low relative density and simple manufacturing process. 203 Some other novel cores are illustrated in Figure 24, which shows other novel core innovative trends.…”

Section: Three-dimensional (3 D) Periodic Coresmentioning

confidence: 99%

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A review of the recent trends on core structures and impact response of sandwich panels

Rejab

Siregar

et al. 2021

Journal of Composite Materials

148

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It is a challenging task to advance the excellent strength and structural performance of sandwich structures, while continuing to reduce the weight and cost parameters. Thousands of researchers have studied and developed the core structural innovation with periodical achievements. This review paper concentrates on the core structural trends and impact response of sandwich panels, which highlights the novel design concepts and impact failure modes. Three kinds of core structures have been classified, which are foam-core, two- and three-dimensional periodic cores. It is shown that the core structure of sandwich panels plays a vital role in structural performance and applications. Three common types of loading conditions have been considered, i.e. compression, projectile impact and three-point bending. Examples of novel core structures are further studied and summarised under corresponding impact loadings. Recent applications of sandwich structures are briefly concentrated on aerospace, automotive, marine and civil engineering areas. Furthermore, future research and development prospect of sandwich structures are suggested and predicted.

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Section: Three-dimensional (3 D) Periodic Coresmentioning

confidence: 99%

“…Examples of some novel three-dimensional cores (Reproduced with permission from Elsevier). [201][202][203] Figure 23. The image of truncated core structure (Reproduced with permission from Elsevier).…”

Section: Three-dimensional (3 D) Periodic Coresmentioning

confidence: 99%

A review of the recent trends on core structures and impact response of sandwich panels

Rejab

Siregar

et al. 2021

Journal of Composite Materials

148

View full text Add to dashboard Cite

show abstract

“…Mathematical modeling of stresses using the finite element method provides a quick and convenient way of obtaining approximate solutions for any type of engineering problem, considering that the response of most engineering systems to an external loads is extremely difficult, if not impossible, to obtain based on a classic mathematical algorithm (usually, it is impossible to obtain an analytic solution for the differential equations obtained). [35][36][37][38] As can be seen in Figure 1, the plate is divided into four areas as follows:…”

Section: Introductionmentioning

confidence: 99%

Improved rigidity of composite circular plates through radial ribs

Itu

Öchsner

Vlase

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part L:

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Engineering practice imposes an increased rigidity of mechanical elements that are parts of machinery or equipment used in practice. Circular plates are such elements, especially used in many common applications, which is why the increase in mechanical properties of circular plates in engineering is connected with the weight optimization problem. The paper makes a study of such a composite plate, proposes and validates a constructive solution capable of increasing the stiffness of this piece. The finite element method is used for the composite panel analysis, and experimental measurements allow us to take information concerning of the magnitude of this rigidity.

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“…The manufacturing process is reminiscent of that developed for metal structures by Velea et al [11][12]. We employ two different material concepts; Carbon fibre reinforced PET for high mechanical performance and PET fibre reinforced PET (self-reinforced composite) for low material cost and full recyclability.…”

Section: Introductionmentioning

confidence: 99%

Compression properties of novel thermoplastic carbon fibre and poly-ethylene terephthalate fibre composite lattice structures

Schneider

Velea

Kazemahvazi

et al. 2015

Materials & Design (1980-2015)

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A novel manufacturing route to efficiently produce fibre composite lattice structures has been developed. By using thermoplastic composite materials, flat sheets have been continuously folded, cut into a lattice shape and joined into a sandwich structure.Carbon fibre reinforced PET and PET fibre reinforced PET materials have been used to explore two different core options; a carbon fibre option which gives high performance but low recyclability and a single polymer PET option which gives lower performance but full recyclability. Parametric numerical simulations have been used to investigate how the various manufacturing parameters affect the mechanical performance of the core. The carbon fibre composite cores have mechanical performance on-par or better than existing metallic and composite lattice cores presented in literature. Single polymer PET cores show better performance compared to high-end foam cores but have considerable lower performance than carbon fibre lattice cores.

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Out-of-plane effective shear elastic properties of a novel cellular core for sandwich structures

Cited by 9 publications

References 13 publications

A review of the recent trends on core structures and impact response of sandwich panels

A review of the recent trends on core structures and impact response of sandwich panels

Improved rigidity of composite circular plates through radial ribs

Compression properties of novel thermoplastic carbon fibre and poly-ethylene terephthalate fibre composite lattice structures

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