On shear locking in MLPG solid-shell approach

Jarak, Tomislav and Sorić, Jurica (2011) On shear locking in MLPG solid-shell approach. = On shear locking in MLPG solid-shell approach. CMES - Computer Modeling in Engineering and Sciences, 81 (2). pp. 157-193. ISSN 1526-1492. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2011). Točan broj autora: 2.

Text On_Shear_Locking_in_MLPG_Solid-Shell_App.pdf - Accepted Version Restricted to IP adress Jezik dokumenta:Croatian Download (3MB)

Abstract

A solid-shell MLPG approach for the numerical analysis of plates and shells is presented. A special attention is devoted to the transversal shear locking effect that appears in the structure thin limit. The theoretical origins of shear locking in the purely displacement-based approach are analyzed by means of the consistency paradigm. It is shown that the spurious constraints appear in the constrained strain field, which lead to the appearance of shear locking and sub-optimal convergence rates. The behaviour of the mixed MLPG approach in the thin limit is also considered. It is determined that in the mixed paradigm the Kirchhoff-Love conditions have to be satisfied only at the nodes to avoid the shear locking effects. The validity of the theoretical predictions is supported by the presented numerical examples, where good convergence and accuracy are obtained even if the low-order meshless approximations are used.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	Convergence rates; Meshless approximation; MLPG method; Numerical example; Plates and shells; Shear locking effect; Shear-locking; Solid-shell; Strain fields; Theoretical prediction; Thin plate; Numerical analysis; Shells (structures); Shear flow
Subjects:	TECHNICAL SCIENCE
Divisions:	200 Department of Engineering Mechanics > 210 Chair of Mechanics and Strength of Materials
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Quartiles:	Q2 (2011)
Citations SCOPUS:	1 (30.11.2016.)
Date Deposited:	23 Apr 2015 10:35
Last Modified:	30 Nov 2016 10:09
URI:	http://repozitorij.fsb.hr/id/eprint/3766

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