Global and local buckling of sandwich circular and beam-rectangular plates with metal foam core

2012 ◽  
Vol 61 ◽  
pp. 154-161 ◽  
Author(s):  
P. Jasion ◽  
E. Magnucka-Blandzi ◽  
W. Szyc ◽  
K. Magnucki
Keyword(s):  
Metal Foam ◽  
Local Buckling ◽  
Foam Core ◽  
Rectangular Plates ◽  
Global And Local

scholarly journals The influence of geometric imperfections on the stability of three-layer beams with foam core

2017 ◽  
Vol 37 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Iwona Wstawska
Keyword(s):  
Metal Foam ◽  
Plastic Material ◽  
Local Buckling ◽  
Foam Core ◽  
Pure Bending ◽  
Geometric Imperfections ◽  
The Core ◽  
Analysis Of Stability ◽  
Elastic Plastic Material ◽  
The Stability

Abstract The main objective of this work is the numerical analysis (FE analysis) of stability of three-layer beams with metal foam core (alumina foam core). The beams were subjected to pure bending. The analysis of the local buckling was performed. Furthermore, the influence of geometric parameters of the beam and material properties of the core (linear and non-linear model) on critical loads values and buckling shape were also investigated. The calculations were made on a family of beams with different mechanical properties of the core (elastic and elastic-plastic material). In addition, the influence of geometric imperfections on deflection and normal stress values of the core and the faces has been evaluated.

Effective design of a sandwich beam with a metal foam core

2007 ◽  
Vol 45 (4) ◽  
pp. 432-438 ◽  
Author(s):  
E. Magnucka-Blandzi ◽  
K. Magnucki
Keyword(s):  
Metal Foam ◽  
Sandwich Beam ◽  
Foam Core ◽  
Effective Design

scholarly journals Non-Local Buckling Analysis of Functionally Graded Nanoporous Metal Foam Nanoplates

Coatings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 389 ◽  
Author(s):  
Yanqing Wang ◽  
Zhiyuan Zhang
Keyword(s):  
Metal Foam ◽  
Plate Theory ◽  
Constitutive Relations ◽  
Equations Of Motion ◽  
Local Buckling ◽  
Functionally Graded ◽  
Small Scale ◽  
Refined Plate Theory ◽  
Nanoporous Metal ◽  
Non Local

In this study, the buckling of functionally graded (FG) nanoporous metal foam nanoplates is investigated by combining the refined plate theory with the non-local elasticity theory. The refined plate theory takes into account transverse shear strains which vary quadratically through the thickness without considering the shear correction factor. Based on Eringen’s non-local differential constitutive relations, the equations of motion are derived from Hamilton’s principle. The analytical solutions for the buckling of FG nanoporous metal foam nanoplates are obtained via Navier’s method. Moreover, the effects of porosity distributions, porosity coefficient, small scale parameter, axial compression ratio, mode number, aspect ratio and length-to-thickness ratio on the buckling loads are discussed. In order to verify the validity of present analysis, the analytical results have been compared with other previous studies.

scholarly journals Benchmark solutions and assessment of variable kinematics models for global and local buckling of sandwich struts

2016 ◽  
Vol 156 ◽  
pp. 125-134 ◽  
Author(s):  
Michele D’Ottavio ◽  
Olivier Polit ◽  
Wooseok Ji ◽  
Anthony M. Waas
Keyword(s):  
Local Buckling ◽  
Global And Local ◽  
Benchmark Solutions

LOAD-CARRYING CAPACITIES FOR CIRCULAR METAL FOAM CORE SANDWICH PANELS AT LARGE DEFLECTION

2008 ◽  
Vol 22 (31n32) ◽  
pp. 6218-6223 ◽  
Author(s):  
W. HOU ◽  
Z. WANG ◽  
L. ZHAO ◽  
G. LU ◽  
D. SHU
Keyword(s):  
Finite Element ◽  
Velocity Field ◽  
Large Deflection ◽  
Metal Foam ◽  
Yield Criterion ◽  
Metallic Foam ◽  
Foam Core ◽  
Element Simulation ◽  
Load Carrying ◽  
Good Agreement

This paper is concerned with the load-carrying capacities of a circular sandwich panel with metallic foam core subjected to quasi-static pressure loading. The analysis is performed with a newly developed yield criterion for the sandwich cross section. The large deflection response is estimated by assuming a velocity field, which is defined based on the initial velocity field and the boundary condition. A finite element simulation has been performed to validate the analytical solution for the simply supported cases. Good agreement is found between the theoretical and finite element predictions for the load-deflection response.

Vibration and Buckling Analyses of Sandwich Plates Containing Functionally Graded Metal Foam Core

2022 ◽  
Author(s):  
A. Garg ◽  
H. D. Chalak ◽  
L. Li ◽  
M.-O. Belarbi ◽  
R. Sahoo ◽  
...  
Keyword(s):  
Metal Foam ◽  
Functionally Graded ◽  
Sandwich Plates ◽  
Foam Core
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