scispace - formally typeset
Search or ask a question
Topic

Sandwich panel

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


Papers
More filters
Journal ArticleDOI
TL;DR: In this article, the in-plane crushing behaviors of the over-expanded honeycomb (OH) were revealed by experiments and it was suggested that the incident angle should not be larger than 45°.

39 citations

Journal ArticleDOI
TL;DR: In this paper, the analysis of deformations and stresses in a large aspect ratio sandwich panel subject to fire or another source of elevated temperature is presented, where the panel, assumed to bend into a cylindrical surface, is simply supported at the edges.
Abstract: The paper presents the analysis of deformations and stresses in a large aspect ratio sandwich panel subject to fire or another source of elevated temperature. The panel, assumed to bend into a cylindrical surface, is simply supported at the edges. The edges are also prevented from in-plane displacements providing an elastic restraint as the panel stretches due to bending. The solution is obtained in a closed form when the deformations are small and when geometrically nonlinear effects are incorporated into the analysis. The solution is open to modification with arbitrary temperature and property distributions through the thickness of the panel, enabling a designer to incorporate the results from a multitude of heat transfer scenarios so long as the structural problem can be treated as quasi-static.

39 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of defect on the compressive response of carbon-fiber pyramidal truss cores sandwich panel was investigated through experimental and theoretical methods, and it was shown that the defect was introduced in the form of missing strut for the individual cell.
Abstract: In the present study, the defect was introduced in the form of missing strut for the individual cell. The effect of defect on the compressive response of carbon-fiber pyramidal truss cores sandwich panel was investigated through experimental and theoretical methods. A series of sandwich panel sample with or without defect was fabricated, and compressive tests were performed at ambient temperature. Scanning electron microscopy (SEM) was conducted on the samples to evaluate the carbon-fiber distribution and failure mode. A revised theoretical model was proposed to predict the effect of defect considering the strut bending and shear behavior. Our results revealed that the compressive moduli of sandwich panel decrease linearly with the fraction of missing struts. Comparing with open-cell foams and honeycombs, the pyramidal truss has better defect tolerance. The theoretical result calculated by the proposed model was in general agreement with experimental result.

39 citations

Journal ArticleDOI
TL;DR: In this paper, the mechanical behavior of multilayer corrugated core laminated composite sandwich panel subjected to quasi-static three-point bending is investigated experimentally as well as numerically.

39 citations

Journal ArticleDOI
TL;DR: This paper describes the extension of a wave and finite element (WFE) method to the prediction of noise transmission through, and radiation from, infinite panels, and various example applications are presented to illustrate the approach.
Abstract: This paper describes the extension of a wave and finite element (WFE) method to the prediction of noise transmission through, and radiation from, infinite panels. The WFE method starts with a conventional finite element model of a small segment of the panel. For a given frequency, the mass and stiffness matrices of the segment are used to form the structural dynamic stiffness matrix. The acoustic responses of the fluids surrounding the structure are modelled analytically. The dynamic stiffness matrix of the segment is post-processed using periodic structure theory, and coupled with those of the fluids. The total dynamic stiffness matrix is used to obtain the response of the medium to an incident acoustic pressure. Excitation of the structure by oblique plane waves and a diffuse sound field are considered. The response to structural excitation and the consequent radiation are determined. Since the size of the WFE model is small, computational times are small. Various example applications are presented to illustrate the approach, including a thin isotropic panel, an antisymmetric, cross-ply sandwich panel and a symmetric panel with an orthotropic core.

39 citations


Network Information
Related Topics (5)
Fracture mechanics
58.3K papers, 1.3M citations
84% related
Finite element method
178.6K papers, 3M citations
83% related
Ultimate tensile strength
129.2K papers, 2.1M citations
81% related
Compressive strength
64.4K papers, 1M citations
81% related
Fracture toughness
39.6K papers, 854.3K citations
80% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202384
2022217
2021244
2020280
2019264
2018252