Strong and weak formulations of a mixed higher-order shear deformation theory for the static analysis of functionally graded beams under thermo-mechanical loads

Chih Ping Wu, Zhan Rong Xu

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The strong and weak formulations of a mixed layer-wise (LW) higher-order shear deformation theory (HSDT) are developed for the static analysis of functionally graded (FG) beams under various boundary conditions subjected to thermo-mechanical loads. The material properties of the FG beam are assumed to obey a power-law distribution of the volume fractions of the constituents through the thickness of the FG beam, for which the effective material properties are estimated using the rule of mixtures, or it is directly assumed that the effective material properties of the FG beam obey an exponential function distribution along the thickness direction of the FG beam. The results shown in the numerical examples indicate that the mixed LW HSDT solutions for elastic and thermal field variables are in excellent agreement with the accurate solutions available in the literature. A parametric study related to various effects on the coupled thermo-mechanical behavior of FG beams is carried out, including the aspect ratio, the material-property gradient index, and different boundary conditions.

原文English
文章編號158
期刊Journal of Composites Science
4
發行號4
DOIs
出版狀態Published - 2020

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 工程(雜項)

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