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Sandwich panel

About: Sandwich panel is a research topic. Over the lifetime, 4665 publications have been published within this topic receiving 49812 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a multifunctional hybrid material class in the form of a sandwich panel has been developed towards the combined optimization of mechanical and electromagnetic absorption performance, where the faces of the panel are made of glass fibre reinforced epoxy composites and the core is made of carbon nanotube reinforced polymer foam filling a metallic honeycomb.

39 citations

Journal ArticleDOI
TL;DR: In this paper, the thermal vibration of a double curved sandwich panel (DCSP) with embedded pre-strained shape memory alloy (SMA) wires hybrid composite face sheets and soft core is analyzed.

38 citations

Journal ArticleDOI
TL;DR: In this article, the authors derived the nonlinear governing equations of the prebuckling and postbuckling states of a unidirectional sandwich panel with a soft core using a variational approach following the principles of the high-order sandwich panel theory.
Abstract: This paper deals with thermally induced deformation buckling and postbuckling of a unidirectional sandwich panel with a soft core. The mathematical formulation is based on the high-order sandwich-panel approach and it incorporates the effects of the flexibility of the core in the vertical direction, along with its expansion or contraction in the vertical direction as a result of the imposed thermal field. The nonlinear governing equations are derived using a variational approach following the principles of the high-order sandwich-panel theory. The governing equations of the prebuckling and buckling states are determined through linearization following a perturbation approach. The effects of the vertical thermal core normal strains of the core, which are usually ignored by various computational models, are studied at the buckling and the postbuckling stages, with emphasis on the differences in the mechanical behavior. A comparison with results obtained using a classical elastic foundation approach is conducted, and the differences are presented and discussed. The postbuckling behavior of thermally loaded sandwich panels in the vicinity of the temperatures that cause buckling, based on a simplified model, is presented through numerical examples involving a uniform temperature field, along with finite element results using ANSYS that compare very well. In addition, the results for a gradient thermal field are described. The results are presented through various structural quantities along the panel and through equilibrium path curves of temperature vs extreme values of these structural quantities. An important conclusion of the study is that the postbuckling behavior of a heated sandwich panel with a soft core is of a stable type for the cases investigated (i.e., that of a plate rather than of a column or a shell).

38 citations

Journal ArticleDOI
TL;DR: In this article, a simple method for engineering analysis of ply drop-off induced local bending effects in CFRP/honeycomb sandwich panels is introduced, and two examples are evaluated, and it is shown that the elastic response is strongly influenced by the presence of a supporting core material.

38 citations

Journal ArticleDOI
TL;DR: In this paper, the performance of a fiber-reinforced-polymeric (FRP) composite system for repair strengthening reinforced concrete (RC) beams is evaluated in the form of thin sandwich FRP panels that are bonded/bolted to concrete.

38 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202384
2022217
2021244
2020280
2019264
2018252