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Published in:
2015 | OriginalPaper | Chapter
6. Finite Element Equations
Authors : Erdogan Madenci, Ibrahim Guven
Published in: The Finite Element Method and Applications in Engineering Using ANSYS®
Publisher: Springer US
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Abstract
Finite element equations capture the characteristics of the field equations. Their derivation is based on either the governing differential equation or the global energy balance of the physical problem. The approach involving the governing differential equation is referred to as the method of weighted residuals or Galerkin’s method. The approach utilizing the global energy balance is referred to as the variational method or Rayleigh-Ritz method.