Size-dependent analysis of FG-CNTRC microplates based on modified strain gradient elasticity theory

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Chien H. Thai (Autor) Outra; A. J. M. Ferreira (Autor) FEUP; T. Rabczuk (Autor) Outra; H. Nguyen-Xuan (Autor) Outra

Revista

Título: European Journal of Mechanics, A/Solids

Vol. 72

Páginas: 521-538

ISSN: 0997-7538

Editora: Elsevier

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 39 Citações

INSPEC

Outras Informações

ID Authenticus: P-00P-GT7

DOI: 10.1016/j.euromechsol.2018.07.012

Abstract (EN): We present in this study a size-dependent computational approach based on the modified strain gradient theory (MSGT) and higher-order shear deformation theory for static bending and free vibration analyses of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) microplates. Three material length scale parameters (MLSPs) are taken into account in MSGT to capture size effects of microplate behavior. The effective material properties of FG-CNTRC microplates are obtained by an extended rule of mixture. Four types of carbon nanotube distributions, which are either uniform or functionally graded (FG) through the plate thickness, are considered. The governing equations are derived from the principle of virtual work and are then solved by isogeometric analysis (IGA). The IGA is suitable for a numerical implementation of the size-dependent models since it requires higher-order gradients in the weak form. The inclusion of geometrical parameters, boundary conditions, distributed types of carbon nanotube and material length scale parameters are studied to evaluate the displacement and natural frequency of FG-CNTRC microplates. In addition, the present size-dependent model can be retrieved into the modified couple stress model or classical model when a few MLSPs are ignored.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18