The Rayleigh-Ritz and Trefftz Methods
The Rayleigh-Ritz method belongs to the so-called direct methods of the calculus of variations, inasmuch as it is applied to problems formulated in an integral rather than a conventional, that is, differential, form. More often than not, the procedure involves the minimization of integrals containing unknown functions and their derivatives, without first deriving from these integrals equivalent (the so-called Euler-Lagrange) differential equations.
KeywordsCoordinate Function Ritz Method Torsional Rigidity Minimum Potential Energy Biharmonic Problem
Unable to display preview. Download preview PDF.