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Solution of non-linear finite element problems with not well-conditioned stiffness matrices

✍ Scribed by Peng-Li Shao

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
912 KB
Volume
57
Category
Article
ISSN
0045-7949

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Differentiation of finite element soluti
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Two extended numerical di!erentiation methods based on Green's second identity are presented. These may be used for postprocessing approximate solutions in general material distributions, including inhomogeneous and discontinuous material characteristics. The "rst method uses a general formulation w