Article
Triangular Finite Elements with Rotational Degrees of Freedom and Enhanced Strain Modes
Computers & Structures
(2000)
Abstract
Three sets of enhanced strain functions are considered for the improvement of the three-node triangular finite element with rotational degrees of freedom. In each case, four enhanced strain terms are used. The four unknowns associated with the enhanced strain terms can be eliminated by static condensation so that nine degrees of freedom remain for the enhanced elements. Faster convergence in the energy norm is achieved. The enhanced elements are also able to deal with nearly incompressible plane strain problems considered, provided all rotational degrees of freedom do not vanish at all element nodes.
Keywords
- Finite Element Method,
- Enhanced Strain Method,
- Plane Stress–strain Analysis
Disciplines
Publication Date
April 1, 2000
DOI
10.1016/S0045-7949(99)00095-4
Citation Information
Reinhard E. Piltner and Robert L. Taylor. "Triangular Finite Elements with Rotational Degrees of Freedom and Enhanced Strain Modes" Computers & Structures Vol. 75 Iss. 4 (2000) p. 361 - 368 ISSN: 0045-7949 Available at: http://works.bepress.com/reinhard_piltner/46/