scholarly journals Multi-Mode Buckling Analysis of FGM Channel Section Beams

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2567
Author(s):  
Monika Zaczynska ◽  
Filip Kazmierczyk
Keyword(s):  
Adhesive Layer ◽  
Functionally Graded ◽  
Buckling Mode ◽  
Individual Layer ◽  
Graded Materials ◽  
Channel Section ◽  
Global Buckling ◽  
Parametric Studies ◽  
Walled Channel ◽  
The Individual

The interactive buckling phenomenon in thin-walled channel section beams is investigated in this paper. This study deals with medium length beams made of the step-variable functionally graded materials (FGM) which consists of aluminum and titanium layers. The interaction of local, primary and secondary global buckling mode and their effect on the load-carrying capacity is discussed. The parametric studies are performed to assess the effect of the thickness of the beam’s component, its length and position of the individual layer on the equilibrium paths. Additionally, the influence of the adhesive layer between materials was analyzed. The problem was solved using the Finite Element Method.

FGM Research Activities in Europe

MRS Bulletin ◽  
1995 ◽  
Vol 20 (1) ◽  
pp. 22-26 ◽  
Author(s):  
Wolfgang A. Kaysser ◽  
Bernhard Ilschner
Keyword(s):  
Functionally Graded ◽  
Swiss Federal Institute ◽  
Research Projects ◽  
Graded Materials ◽  
Research Activities ◽  
Federal Institute ◽  
The Status ◽  
Institute Of Technology ◽  
The Individual ◽  
Application Fields

The application of functionally graded materials (FGM) principles is widespread in Europe, despite the lack of national or European programs coordinating the efforts of the individual institutions and researchers. In the following article, the status of research in Europe will be outlined by examples of research projects from various application fields. More detailed information on European FGM research is available from the proceedings of the FGM '94 symposium held in October 1994 in Lausanne, Switzerland. The symposium was organized by B. Ilschner through the Materials Department of the Swiss Federal Institute of Technology of Lausanne.

AN ANALYTICAL APPROACH FOR BUCKLING BEHAVIOR OF TEMPERATURE-DEPENDENT LAMINATED PIEZOELECTRIC FUNCTIONALLY GRADED PLATES UNDER THERMO-ELECTRO-MECHANICAL LOADINGS AND DIFFERENT END SUPPORTS

2014 ◽  
Vol 11 (04) ◽  
pp. 1350099 ◽  
Author(s):  
ABDOLHOSSEIN FEREIDOON ◽  
HESSAMEDDIN YAGHOOBI ◽  
ALI DEHGHANIAN
Keyword(s):  
Analytical Approach ◽  
Volume Fraction ◽  
Plate Theory ◽  
Functionally Graded ◽  
Temperature Dependent ◽  
Graded Materials ◽  
Buckling Behavior ◽  
Parametric Studies ◽  
Plate Aspect Ratio ◽  
Fgm Layer

In this paper, we examine the buckling behavior of piezoelectric laminated plate made of two-layered functionally graded materials (FGMs) that are integrated with surface-bonded piezoelectric actuators and is subjected to a combined action of uniform temperature change, inplane forces, and applied actuator voltage. Temperature-dependent material properties are assumed for both the substrate FGM layer and piezoelectric layers. Employing an analytical approach, five coupled governing stability equations, which were derived based on the first-order shear deformation plate theory, are converted into a fourth-order and a second-order decoupled partial differential equations. Then, an accurate analytical solution is proposed to solve them. Parametric studies are also undertaken, and show the effects of applied actuator voltage, volume fraction exponents, plate aspect ratio, ratio of piezoelectric layer thickness to thickness of FGM layer and temperature dependency, on the buckling load of the plate.

Dynamic Analysis with Stress Recovery for Functionally Graded Materials: Numerical Simulation and Experimental Benchmarking

2014 ◽  
Vol 2 (1) ◽  
pp. 21
Author(s):  
Carlos Alberto Dutra Fraga Filho ◽  
Fernando César Meira Menandro ◽  
Rivânia Hermógenes Paulino de Romero ◽  
Juan Sérgio Romero Saenz
Keyword(s):  
Numerical Simulation ◽  
Dynamic Analysis ◽  
Functionally Graded Materials ◽  
Functionally Graded ◽  
Stress Recovery ◽  
Graded Materials

scholarly journals A New Analytical Approach for Nonlinear Global Buckling of Spiral Corrugated FG-CNTRC Cylindrical Shells Subjected to Radial Loads

2020 ◽  
Vol 10 (7) ◽  
pp. 2600
Author(s):  
Tho Hung Vu ◽  
Hoai Nam Vu ◽  
Thuy Dong Dang ◽  
Ngoc Ly Le ◽  
Thi Thanh Xuan Nguyen ◽  
...  
Keyword(s):  
Analytical Approach ◽  
Cylindrical Shells ◽  
Equation System ◽  
Functionally Graded ◽  
Governing Equations ◽  
Reinforced Composite ◽  
Global Buckling ◽  
Homogenization Model ◽  
Corrugated Structure ◽  
The Galerkin Method

The present paper deals with a new analytical approach of nonlinear global buckling of spiral corrugated functionally graded carbon nanotube reinforced composite (FG-CNTRC) cylindrical shells subjected to radial loads. The equilibrium equation system is formulated by using the Donnell shell theory with the von Karman’s nonlinearity and an improved homogenization model for spiral corrugated structure. The obtained governing equations can be used to research the nonlinear postbuckling of mentioned above structures. By using the Galerkin method and a three term solution of deflection, an approximated analytical solution for the nonlinear stability problem of cylindrical shells is performed. The linear critical buckling loads and postbuckling strength of shells under radial loads are numerically investigated. Effectiveness of spiral corrugation in enhancing the global stability of spiral corrugated FG-CNTRC cylindrical shells is investigated.

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