Equivalent properties for corrugated cores of sandwich structures: A general analytical method

Bartolozzi, G; Baldanzini, Niccolò; Pierini, Marco

doi:10.1016/j.compstruct.2013.10.012

Cited by 81 publications

(57 citation statements)

References 25 publications

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“…Corrugated core are a subset of two-dimensional periodic cores and most important feature is the corrugation shape, that can be varied for a fabricated design of the components [9]. A lot of theoretical, numerical, and experimental studies have been conducted to find its failure mode, properties of the design and the behavioral of corrugated core sandwich structure [6,[9][10][11][12][13][14][34][35][36][37].…”

Section: Potential Of Natural Fiber For Corrugated Coresmentioning

confidence: 99%

“…A lot of theoretical, numerical, and experimental studies have been conducted to find its failure mode, properties of the design and the behavioral of corrugated core sandwich structure [6,[9][10][11][12][13][14][34][35][36][37]. In Figure 2, Buannic et al [35] reported that corrugated core sandwich structure can be categorized into four different conventional geometries; straight, hat-type, triangular and curvilinear.…”

Section: Potential Of Natural Fiber For Corrugated Coresmentioning

confidence: 99%

“…As in previous chapter, most researches uses sheet metal as such Bartolozzi et al [9,34] use of metal due to its main characteristic which is high stiffness-to-mass ratio, most likely under bending conditions. Zhang et al [6,10,14] and Lim et al [13] used stainless steel sheet to study the dynamic and buckling response of trapezoidal corrugated core sandwich structure panels.…”

Section: Potential Of Natural Fiber For Corrugated Coresmentioning

confidence: 99%

“…Between all sandwich structures, desirable solutions are the corrugated cores. The characteristic of corrugated core is providing good structural performance with very restricted thickness in total and small thickness compared to overall measurement which affect negatively of their modeling [9]. Most researchers were using metallic cores, stochastic foams, honeycombs, lightweight ceramic and polymeric foams to study the characteristic and the effect of sandwich panel with corrugated cores [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Natural Fiber Reinforced Composites: A Review on Potential for Corrugated Core of Sandwich Structures

et al. 2016

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Abstract. Natural fibers, characterized by sustainability, have gained a considerable attention in recent years, due to their advantages of environmental acceptability and commercial viability. In this paper, the characterization of natural fibers including the mechanical properties and alkalization of fibers is presented. Most recent study had gone through the mercerization process to improve the toughness of natural fibers; which is a well-known hydrophilic material. Traditional reinforcement method was commonly used to fabricate a natural fiber composite such as hand lay-up and mold press due to its convenience in terms of time and cost. Also, different kind of matrix material used in different kind of natural fibers gave high impact on the tensile and flexural test result. By selecting appropriate chemical treatment, matrix material and fabrication method, the tensile and flexural test gives different results and findings. As most researchers tend to use metals to create corrugated cores for sandwich structure, it is possible to develop this structure using natural fibers such as kenaf, wood dust, and other natural fibers.

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Section: Potential Of Natural Fiber For Corrugated Coresmentioning

confidence: 99%

Section: Potential Of Natural Fiber For Corrugated Coresmentioning

confidence: 99%

Section: Potential Of Natural Fiber For Corrugated Coresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Natural Fiber Reinforced Composites: A Review on Potential for Corrugated Core of Sandwich Structures

et al. 2016

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“…Sandwich structures comprising of face-sheets and cores are broadly used in transportation vehicles and civil infrastructure due to their high stiffness/strength-to-weight ratio [2][3][4][5][6][7][8][9][10]. Sandwich structures have numerous topologies in different material-e.g composite corrugated-core, metallic core, or metallic textile core [10][11][12][13][14]. Sandwich structures have different core material including the shape.…”

Section: Introductionmentioning

confidence: 99%

Effect of varying geometrical parameters of trapezoidal corrugated-core sandwich structure

et al. 2016

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Abstract. Sandwich structure is an attractive alternative that increasingly used in the transportation and aerospace industry. Corrugated-core with trapezoidal shape allows enhancing the damage resistance to the sandwich structure, but on the other hand, it changes the structural response of the sandwich structure. The aim of this paper is to study the effect of varying geometrical parameters of trapezoidal corrugated-core sandwich structure under compression loading. The corrugated-core specimen was fabricated using press technique, following the shape of trapezoidal shape. Two different materials were used in the study, glass fibre reinforced plastic (GFRP) and carbon fibre reinforced plastic (CFRP). The result shows that the mechanical properties of the core in compression loading are sensitive to the variation of a number of unit cells and the core thickness.

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Non‐linear thermoelastic vibration and optimum frequency prediction of sandwich composite corrugated panels with honeycomb auxetic core

Kumar,

Rathore,

Kar

et al. 2023

Polymer Composites

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In this article, the non‐linear free vibration behavior of sandwich composite panels with sinusoidal corrugations is examined. These panels consist of a top and bottom skin made of a graphene‐reinforced composite, with an auxetic honeycomb core having negative Poisson's ratio. The non‐linear kinematic field is based on Kant's higher‐order shear‐deformation theory and the Green‐strain, which incorporates all the higher‐order terms. By implementing the Hamilton principle, the non‐linear governing equations are affirmed and solved further through 2D‐isoparametric finite element approximations via Lagrangian elements in conjunction with Picard's successive iterative scheme. The comparison and validation tests demonstrate the correctness of the present model. The established sandwich model is further employed for various parametric conditions by varying the core‐to‐face sheet thickness, auxetic honeycomb properties, graphene volume fraction, shell configurations, temperature, and support conditions. These numerous results exemplify the non‐linear frequencies at small‐to‐large amplitudes for the sandwich shell structures and are discussed in detail. In addition, a multi‐objective parametric optimization is conducted using the response surface method to investigate the optimal values of the corrugated auxetic honeycomb shell panel's parameters, resulting maximum frequency.Highlights Non‐linear vibration of corrugated sandwich shell panel. Graphene reinforced skins and honeycomb auxetic core. Kant's higher‐order shear‐deformation theory and Green‐Lagrange non‐linearity. Hamilton principle and Picard's successive iterative scheme. Multi‐objective parametric optimization and prediction using response surface methodology.

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Equivalent properties for corrugated cores of sandwich structures: A general analytical method

Cited by 81 publications

References 25 publications

Natural Fiber Reinforced Composites: A Review on Potential for Corrugated Core of Sandwich Structures

Natural Fiber Reinforced Composites: A Review on Potential for Corrugated Core of Sandwich Structures

Effect of varying geometrical parameters of trapezoidal corrugated-core sandwich structure

Non‐linear thermoelastic vibration and optimum frequency prediction of sandwich composite corrugated panels with honeycomb auxetic core

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