Title of article :
Free-vibration analysis of shells via a linearly conforming radial point interpolation method (LC-RPIM)
Author/Authors :
Zhao، نويسنده , , X. and Liu، نويسنده , , G.R. and Dai، نويسنده , , K.Y. and Zhong، نويسنده , , Z.H. and Li، نويسنده , , G.Y. and Han، نويسنده , , X.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
In this paper, free-vibration analysis of shells is carried out using a linearly conforming radial point interpolation method (LC-RPIM). The present formulation is based on the first-order shear deformation shell theory. A set of arbitrarily distributed nodes in local support domains is selected to perform interpolation, and radial and polynomial basis functions are employed to construct shape functions with Delta function property. Nodal integration, which is enforced by a strain-smoothing stabilization technique, is used to restore conformability and improve the accuracy of solutions. Comparisons of current solutions are made with existing results available in literature and good agreements are obtained. Numerical examples demonstrate that the present approach provides very stable and accurate results.
Keywords :
SHELL , nodal integration , Radial basis function , Point interpolation , shear locking
Journal title :
Finite Elements in Analysis and Design
Journal title :
Finite Elements in Analysis and Design