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Artificial adjustment of element stiffness with a particular reference to plate bending
Author(s) -
Cook Robert D.
Publication year - 1976
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.1620100419
Subject(s) - stiffening , finite element method , stiffness , convergence (economics) , structural engineering , degrees of freedom (physics and chemistry) , element (criminal law) , bending , work (physics) , softening , bending of plates , mathematics , engineering , materials science , mechanical engineering , physics , composite material , quantum mechanics , political science , law , economics , economic growth
A finite element may satisfy all convergence requirements and work well except for being too stiff or too flexible when the mesh is coarse. Here we discuss a technique for softening or stiffening such elements, provided that they have internal degrees‐of‐freedom. The technique is applied to a previously derived plate element, and the element is found to be much improved.