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Dual variational formulation for Trefftz finite element method of elastic materials

Qin, Qing Hua


A dual variational principle is presented for Trefftz finite element analysis. The proof of the stationary conditions of the variational functional and the theorem on the existence of extremum are provided in this paper. They are boundary displacement condition, surface traction condition and interelement continuity condition. Based on the assumed intraelement and frame fields, element stiffness matrix equation is obtained which can easily be implemented into computer programs for numerical...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Mechanics Research Communications
DOI: 10.1016/j.mechrescom.2003.11.003


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