A combined scheme of edge-based and node-based smoothed finite element methods for Reissner–Mindlin flat shells. (April 2016)

• Record Type: Journal Article
• Authors: Nguyen-Hoang, Son; Phung-Van, Phuc; Natarajan, Sundararajan; Kim, Hyun-Gyu
• Is Part Of: Engineering with computers. Volume 32:Number 2(2016)
• Page Start: 267
• Page End: 284
• Publication Date: 2016-04
• Subjects: Reissner–Mindlin flat shell -- Edge-based smoothed finite element method (ES-FEM) -- Node-based smoothed finite element method (NS-FEM) -- Strain smoothing technique; Engineering design -- Data processing -- Periodicals; Computer-aided design -- Periodicals; Conception technique -- Informatique -- Périodiques; Conception assistée par ordinateur -- Périodiques; Electronic journals; 620.00285
• DOI: 10.1007/s00366-015-0416-z
• Languages: English
• ISSNs: 0177-0667

Abstract

Abstract In this paper, a combined scheme of edge-based smoothed finite element method (ES-FEM) and node-based smoothed finite element method (NS-FEM) for triangular Reissner–Mindlin flat shells is developed to improve the accuracy of numerical results. The present method, named edge/node-based S-FEM (ENS-FEM), uses a gradient smoothing technique over smoothing domains based on a combination of ES-FEM and NS-FEM. A discrete shear gap technique is incorporated into ENS-FEM to avoid shear-locking phenomenon in Reissner–Mindlin flat shell elements. For all practical purpose, we propose an average combination (a ENS-FEM) of ES-FEM and NS-FEM for shell structural problems. We compare numerical results obtained usinga ENS-FEM with other existing methods in the literature to show the effectiveness of the present method.