標題: Strong-Form Formulated Generalized Displacement Control Method for Large Deformation Analysis
作者: Yang, Judy P.
Chen, Jian-Yu
土木工程學系
Department of Civil Engineering
關鍵字: Meshfree method;generalized displacement control method;radial basis function;large deformation;incremental-iterative algorithm
公開日期: 1-Oct-2017
摘要: The traditional analysis of geometric nonlinearity is mostly based on the weak-formulated Galerkin method such as the finite element method. The element nature has limited its application as a result of numerical integration in the governing equation and quality control of deformed mesh. In the middle of 1990s, the meshfree methods have been developed and become one leading research topic in computational mechanics. Especially, the strong form collocation methods require no additional efforts to process numerical integration and impose Dirichlet boundary condition, thereby making the collocation methods computationally efficient. In the incremental-iterative process, how to accurately reflect the change in the slope of the load-deflection curve of the structure and remain numerically stable are of major concerns. Thus, we propose a strong-form formulated generalized displacement control method to analyze geometric nonlinear problems, where the radial basis collocation method is adopted. The numerical examples demonstrate the ability of the proposed method for large deformation analysis.
URI: http://dx.doi.org/10.1142/S1758825117501010
http://hdl.handle.net/11536/144248
ISSN: 1758-8251
DOI: 10.1142/S1758825117501010
期刊: INTERNATIONAL JOURNAL OF APPLIED MECHANICS
Volume: 9
Appears in Collections:Articles