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A mixed finite element for the analysis of large inelastic strains
Author(s) -
Jetteur Ph.,
Cescotto S.
Publication year - 1991
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620310203
Subject(s) - spurious relationship , finite element method , zero point energy , element (criminal law) , point (geometry) , mathematical analysis , structural engineering , mixed finite element method , mathematics , node (physics) , physics , engineering , geometry , statistics , quantum mechanics , political science , law
A 4‐node element with 1 integration point is developed for the analysis of elastoplastic large strains. It is based on the Hu‐Washizu principle and uses a co‐rotational formulation. Special care is taken to avoid spurious zero‐energy modes and incompressibility locking. This element successfully passes the large strain patch test. It proves to be accurate and computationally very cheap.