Mixed meshless formulation for analysis of shell-like structures

Sorić, Jurica and Jarak, Tomislav (2010) Mixed meshless formulation for analysis of shell-like structures. = Mixed meshless formulation for analysis of shell-like structures. Computer Methods in Applied Mechanics and Engineering, 199 (17-20). pp. 1153-1164. ISSN 0045-7825. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2010). Točan broj autora: 2.

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Abstract

An efficient mixed meshless computational method based on the Local Petrov-Galerkin approach for analysis of plate and shell structures is presented. A concept of a three-dimensional solid is applied allowing the use of complete three-dimensional constitutive equations, and exact shell geometry can be described. Discretization is carried out by using both the moving least square approximation and the polynomial functions. Independent field variables are the strain and stress tensor components expressed in terms of the nodal values, which are then replaced by the nodal displacements by using the independent displacement interpolation. A closed global system of equations with only nodal displacements as unknown variables is derived. The undesired locking phenomena are fully suppressed. The proposed mixed formulation is numerically more efficient than the available meshless fully displacement approach, as demonstrated by the numerical examples. © 2009 Elsevier B.V.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	Locking effects; Meshless computational methods; Mixed formulations; Petrov-Galerkin approach; Shell-like structures; Computational methods; Constitutive equations; Galerkin methods; Least squares approximations; Polynomial approximation; Three dimensional; Shells (structures)
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
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:	Q1 (2010)
Date Deposited:	13 Apr 2015 07:22
Last Modified:	30 Nov 2016 09:48
URI:	http://repozitorij.fsb.hr/id/eprint/3705

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