期刊
COMPTES RENDUS MECANIQUE
卷 347, 期 2, 页码 91-100出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crme.2019.01.002
关键词
Bifurcation indicator; Method of Fundamental Solutions; Asymptotic Numerical Method; Nonlinear computation
类别
In the present work, we propose a numerical analysis of instability and bifurcations for geometrically nonlinear elasticity problems. These latter are solved by using the Asymptotic Numerical Method (ANM) associated with the Method of Fundamental Solutions (MFS). To compute bifurcation points and to determine the critical loads, we propose three techniques. The first one is based on a geometrical indicator obtained by analyzing the Taylor series. The second one exploits the properties of the Pade approximants, and the last technique uses an analytical bifurcation indicator. Numerical examples are studied to show the efficiency and the reliability of the proposed algorithms. (C) 2019 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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