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Title
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Nonlocal modification of the Gurson-Model
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Author
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Abstract
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| The mesh dependence of some problems in damage mechanics is assumed to be mainly due to errors introduced by the homogenization process. To correct these errors, a nonlocal formulation is proposed. As in the nonlocal theory of elasticity the formulation of the internal work has been extended by a nonlocal term. From a global statement of equilibrium for a structure composed of representative volume elements (RVE's), equations are obtained which have to be satisfied for every single RVE. In order to deal with a two-dimensional problem, only the case of long cylindrical voids in a ductile matrix material under generalized plane strain conditions has been considered. The resulting nonlocal modification of the yield condition will be discussed. |
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Language
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English
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Source (journal)
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Journal de physique: 4. - Les Ulis, 1991 - 2006
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Source (book)
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2nd European Mechanics of Materials Conference on Mechanics of Materials, with Intrinsic Length Scale (EUROMECH-MECAMAT 97), February 23-26, 1998, Magdeburg, Germany
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Publication
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Les Ulis
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1998
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ISSN
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1155-4339
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DOI
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10.1051/JP4:1998834
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Volume/pages
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8
:P8
(1998)
, p. 277-284
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ISI
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000077547500035
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Full text (Publisher's DOI)
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