Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Postbuckling analysis of axially-loaded functionally graded GPL-reinforced composite conical shells
Abstract In this study, a semi-analytical technique is employed to analyze the postbuckling of functionally graded graphene platelet reinforced composite (FG-GPLRC) conical shells under compressive meridional loading. The non-uniform distribution of graphene platelets (GPLs) along the shell thickness is considered and the modified Halpin-Tsai micromechanical model is implemented to determine the overall material properties of nanocomposite shell. The mechanical behavior of FG-GPLRC conical shell is modeled on the basis of first-order shear deformation theory (FSDT) and von-Kármán's nonlinear strain-displacement relations. The governing equations are formulated in the variational framework. The semi-analytical solution based on the variational differential quadrature method (VDQM) and Fourier series is developed. To trace the postbuckling path, the pseudo arc-length continuation scheme in conjunction with the load disturbance approach was employed. In order to analyze the influences of geometrical factors, weight fractions and dispersion patterns of GPLs on the postbuckling characteristics of FG-GPLRC conical shells, various numerical results are comparatively reported.
Highlights Postbuckling of FG-GPLRC conical shells is studied. A semi-analytical solution approach based on the VDQ method and Fourier series is developed. Governing equations are presented based on the FSDT and von-Karman's geometrically nonlinear relation. Effects of weight fractions and dispersion patterns of GPLs on the postbuckling of FG-GPLRC conical shells are investigated.
Postbuckling analysis of axially-loaded functionally graded GPL-reinforced composite conical shells
Abstract In this study, a semi-analytical technique is employed to analyze the postbuckling of functionally graded graphene platelet reinforced composite (FG-GPLRC) conical shells under compressive meridional loading. The non-uniform distribution of graphene platelets (GPLs) along the shell thickness is considered and the modified Halpin-Tsai micromechanical model is implemented to determine the overall material properties of nanocomposite shell. The mechanical behavior of FG-GPLRC conical shell is modeled on the basis of first-order shear deformation theory (FSDT) and von-Kármán's nonlinear strain-displacement relations. The governing equations are formulated in the variational framework. The semi-analytical solution based on the variational differential quadrature method (VDQM) and Fourier series is developed. To trace the postbuckling path, the pseudo arc-length continuation scheme in conjunction with the load disturbance approach was employed. In order to analyze the influences of geometrical factors, weight fractions and dispersion patterns of GPLs on the postbuckling characteristics of FG-GPLRC conical shells, various numerical results are comparatively reported.
Highlights Postbuckling of FG-GPLRC conical shells is studied. A semi-analytical solution approach based on the VDQ method and Fourier series is developed. Governing equations are presented based on the FSDT and von-Karman's geometrically nonlinear relation. Effects of weight fractions and dispersion patterns of GPLs on the postbuckling of FG-GPLRC conical shells are investigated.
Postbuckling analysis of axially-loaded functionally graded GPL-reinforced composite conical shells
Ansari, R. (Autor:in) / Torabi, J. (Autor:in) / Hasrati, E. (Autor:in)
Thin-Walled Structures ; 148
30.12.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2002
| British Library Online Contents | 2012