Bending response of web-core sandwich plates

Romanoff, Jani; Varsta, Petri

doi:10.1016/j.compstruct.2006.08.021

Cited by 103 publications

(70 citation statements)

References 6 publications

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“…The internal forces and displacements are determined by means of the finite element method solution for a given load and boundary conditions. Thereafter, the periodic structure is reconsidered and the internal forces are used for stress prediction based on analytical formulation [17].…”

Section: General Idea Of Sandwich Structuresmentioning

confidence: 99%

Selected problems on application of steel sandwich panels to marine structures

Kozak¹

2009

Polish Maritime Research

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The paper presents a view on selected problems concerning application of steel sandwich panels to marine structures. Such problems connected with specificity of thin-skin laserwelded structure are varying in topics beginning from micro-scale properties of laser-welded T-joint through the joining of sandwich structures together up to connection and integration of such structures with a classical single-skin structure.

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Section: General Idea Of Sandwich Structuresmentioning

confidence: 99%

Selected problems on application of steel sandwich panels to marine structures

Kozak¹

2009

Polish Maritime Research

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“…The transverse shear stiffness in the opposite direction to the web plate direction is [21] (for a symmetric plate) Jelovica …”

Section: Esl Approach With Fsdtmentioning

confidence: 99%

Influence of general corrosion on buckling strength of laser-welded web-core sandwich plates

Jelovica

Romanoff

Remes

2014

Journal of Constructional Steel Research

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The strength of a web-core steel sandwich plate is potentially reduced in a corrosive environment. This study is dedicated to the influence of a reduction in the thickness of the plates as a result of general corrosion on sandwich plate buckling strength and first-fibre failure. Two scenarios are investigated in which corrosion reduces the thickness of (a) the outer sides of the face plates and (b) all surfaces, including the core. The laser weld between the face sheets and the core is assumed to be intact. The assumptions are made on the basis of earlier experimental findings. Critical buckling and geometric non-linear analysis are carried out with the finite element method, with the kinematics being represented using two approaches: (1) equivalent single-layer with first-order shear deformation theory, and (2) a three-dimensional model of the actual geometry of the structure, modelled using shell and connector elements. The former is used to identify the effect of corrosion on the stiffness coefficients and, consequently, the buckling strength. The later is used for verification and for stress prediction during post-buckling. A rapid decrease in the buckling strength was found for corrosion affecting the outer sides of the sandwich plate. The decrease in the buckling strength doubled in the case of the diffusion of moisture (water) into the core. The shear-induced secondary bending of the faces was found to affect the first-fibre yield.Keywords: web-core sandwich plate; buckling; post-buckling; corrosion; first-fibre failure; laserweld. List of symbols

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“…Aydıncak, İlke develop an orthotropic material model after analysis of honeycomb structure which is generally used for honeycomb core [2].Tomas Nordstrand analyzed a corrugated board and which is analyzed in three point bending and evaluate the bending stiffness and also transverse shear stiffness [4]. Jani Romanoff discussed the bending effect on web core sandwich panel which is welded by laser [6]. Pentti kujala made a design and analysis of ultimate strength of all steel sandwich panels and numerical FEM analysis and development of design formulations for these panels [8].…”

Section: Literature Reviewmentioning

confidence: 99%

Composite Section Design for Minimum Weight in Structural Application

Sonawane¹,

Garad²,

Satav³

2015

IJIRSET

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ABSTRACT:A composite structure consist of two face sheets made from material such as metal or fibre composite bonded to light weight material called as core. This light weight composite structure used in application of aircrafts, wind turbine blades, marine and also in other industrial sectors. In this composite structure have top and bottom side mild steel face sheets are used and for core material selected glass fiber reinforced polymer (E-glass/epoxy). In this way minimum weight and increasing of strength can be obtained. In this paper analysis of composite structure is done in Ansys work bench and Total deformation and equivalent stress is analyzed. The model of composite structure is generated in CATIA. The rectangular core composite structure results are compared with circular core composite structure and V core composite structure of with same weight and same boundary conditions and loading.

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Bending response of web-core sandwich plates

Cited by 103 publications

References 6 publications

Selected problems on application of steel sandwich panels to marine structures

Selected problems on application of steel sandwich panels to marine structures

Influence of general corrosion on buckling strength of laser-welded web-core sandwich plates

Composite Section Design for Minimum Weight in Structural Application

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