Bending behavior of corrugated-core sandwich plates

Chang, Wen F.; Ventsel, Eduard; Krauthammer, Theodor; John, Jaison Jacob

doi:10.1016/j.compstruct.2004.08.014

Cited by 96 publications

(48 citation statements)

References 1 publication

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“…Then, corrugated-core sandwich panels, due to their extremely high flexural stiffness-toweight ratio are usually used in aeronautics, aerospace, civil engineering and other applications, where weight is a significant design issue. This structure approach to form a sandwich plate may be defined as 'structurally composite', since its behavior characteristics are defined by the composite action of its components [24]. Rejab et al [14] showed that corrugated cores when tested in the longitudinal direction offer shear strengths that are comparable with square honeycombs and significantly greater than those exhibited by diamond cores and more traditional foam cores.…”

Section: Corrugated-corementioning

confidence: 99%

Sandwich Structure Based On Corrugated-Core: A Review

2016

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Abstract. Sandwich structures are commonly based on polymeric foam and honeycomb core material, for use in lightweight applications such as fuselage in aero plane, hull in marine construction and others. A review of sandwich structure based on corrugated-core is proposed and presented in this paper. Firstly, this paper aims to provide a means of comparing available sandwich structure in industries. Secondly, this paper aims to provide sandwich structure with corrugated-core for future research development efforts in field of sandwich construction. This paper starts with introduction of composite material such as sandwich structure, the advantages of sandwich structure was shown. After that these papers provide the structure of sandwich structure which includes the two faces and the cores. Furthermore, sandwich structure with different cores, which is honeycomb, foam core and corrugated core are discussed. At the end, the paper discussed more on corrugated-core for future research development.

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Section: Corrugated-corementioning

confidence: 99%

Sandwich Structure Based On Corrugated-Core: A Review

2016

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“…But there was no special design for window pane and the thickness of sandwich panel was more than 40mm as building walls or fuselage in past studies (1)(2)(3)(4)(5)(6) . A great deal of study (7)(8)(9)(10)(11)(12)(13)(14)(15) had proved that sandwich panel can be used to minimize the noise transmission of external sources.…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, sandwich structure can be made with different core materials and shapes for particular applications in aircrafts, ships and buildings, such as foam cores (1) , corrugated cores (2) , textile core (3) , aluminum honeycomb cores (4) , truss cores (5) and lattice cores (6) . But there was no special design for window pane and the thickness of sandwich panel was more than 40mm as building walls or fuselage in past studies (1)(2)(3)(4)(5)(6) .…”

Section: Introductionmentioning

confidence: 99%

Improvement Noise Insulation Performance of Polycarbonate Pane using Sandwich Structure

Shen

Nagamura

Nakagawa

et al. 2012

JSDD

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Polycarbonate (PC) laminates offer the possibility of designing strong and light weight panes application in automobile. However, the noise insulation performance of PC pane is worse than glass pane because of its high rate of stiffness to low weight. In this work, a new ultra-thin(less than 10mm) sandwich pane is proposed to obtain high transmission loss(TL). The sandwich structure consists of two thin laminates plates of the same PC material and a thin lightweight damping core bonded between those plates. Then TL is predicted using decoupled equations representing symmetric and anti-symmetric motions for a sandwich PC pane. The effects of various structural and material parameters on noise insulation performance are investigated with numerical examples. Numerical results show that the shear rigidity has evident effect on coincidence frequency and proposed structure has better noise insulation properties than single layer PC pane of equivalent thickness.

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“…Fluted-core and similar designs, such as corrugated-core, are not new and have been explored previously through experiment and analysis. [3][4][5][6][7][8][9] Fluted-and corrugated-core structures have also been proposed and/or used on a limited number of aerospace structures. [10][11][12][13] However, a better understanding of the behavior and failure mechanisms of different fluted-corecomposite designs and construction methods is needed if they are to be incorporated into a wider variety of large weight-critical applications.…”

Section: Introductionmentioning

confidence: 99%

Compression Behavior of Fluted-Core Composite Panels

Schultz

Oremont

Guzman

et al. 2011

52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

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In recent years, fiber-reinforced composites have become more accepted for aerospace applications. Specifically, during NASA's recent efforts to develop new launch vehicles, composite materials were considered and baselined for a number of structures. Because of mass and stiffness requirements, sandwich composites are often selected for many applications. However, there are a number of manufacturing and in-service concerns associated with traditional honeycomb-core sandwich composites that in certain instances may be alleviated through the use of other core materials or construction methods. Flutedcore, which consists of integral angled web members with structural radius fillers spaced between laminate face sheets, is one such construction alternative and is considered herein. Two different fluted-core designs were considered: a subscale design and a full-scale design sized for a heavy-lift-launch-vehicle interstage. In particular, axial compression of flutedcore composites was evaluated with experiments and finite-element analyses (FEA); axial compression is the primary loading condition in dry launch-vehicle barrel sections. Detailed finite-element models were developed to represent all components of the fluted-core construction, and geometrically nonlinear analyses were conducted to predict both buckling and material failures. Good agreement was obtained between test data and analyses, for both local buckling and ultimate material failure. Though the local buckling events are not catastrophic, the resulting deformations contribute to material failures. Consequently, an important observation is that the material failure loads and modes would not be captured by either linear analyses or nonlinear smeared-shell analyses. Compression-after-impact (CAI) performance of fluted-core composites was also investigated by experimentally testing samples impacted with 6 ft.-lb. impact energies. It was found that such impacts reduced the ultimate load carrying capability by approximately 40% on the subscale test articles and by less than 20% on the full-scale test articles. Nondestructive inspection of the damage zones indicated that the detectable damage was limited to no more than one flute on either side of any given impact. More study is needed, but this may indicate that an inherent damagearrest capability of fluted core could provide benefits over traditional sandwich designs in certain weight-critical applications.

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Bending behavior of corrugated-core sandwich plates

Cited by 96 publications

References 1 publication

Sandwich Structure Based On Corrugated-Core: A Review

Sandwich Structure Based On Corrugated-Core: A Review

Improvement Noise Insulation Performance of Polycarbonate Pane using Sandwich Structure

Compression Behavior of Fluted-Core Composite Panels

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