期刊文献+

The Ritz-Sublaminate Generalized Unified Formulation approach for piezoelectric composite plates

原文传递
导出
摘要 This paper extends to composite plates including piezoelectric plies the variable kinematics plate modeling approach called Sublaminate Generalized Unified Formulation(SGUF).Two-dimensional plate equations are obtained upon defining a priori the through-thickness distribution of the displacement field and electric potential.According to SGUF,independent approximations can be adopted for the four components of these generalized displacements:an Equivalent Single Layer(ESL)or Layer-Wise(LW)description over an arbitrary group of plies constituting the composite plate(the sublaminate)and the polynomial order employed in each sublaminate.The solution of the two-dimensional equations is sought in weak form by means of a Ritz method.In this work,boundary functions are used in conjunction with the domain approximation expressed by an orthogonal basis spanned by Legendre polynomials.The proposed computational tool is capable to represent electroded surfaces with equipotentiality conditions.Free-vibration problems as well as static problems involving actuator and sensor configurations are addressed.Two case studies are presented,which demonstrate the high accuracy of the proposed Ritz-SGUF approach.A model assessment is proposed for showcasing to which extent the SGUF approach allows a reduction of the number of unknowns with a controlled impact on the accuracy of the result.
出处 《International Journal of Smart and Nano Materials》 SCIE EI 2018年第1期34-55,I0002,共23页 国际智能和纳米材料杂志(英文)
  • 引文网络
  • 相关文献
;
使用帮助 返回顶部