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Finite element analysis of non‐local effects in ductile fracture
Author(s) -
Howard I. C.,
Li Z. H.
Publication year - 2000
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1046/j.1460-2695.2000.00335.x
Subject(s) - finite element method , materials science , fracture (geology) , scale (ratio) , structural engineering , porosity , composite material , field (mathematics) , mathematics , engineering , physics , quantum mechanics , pure mathematics
The paper introduces a weight function for the nonlocal analysis of ductile damage that has the potential to provide approximately uniform averaged field variables over a limited region. When this region is identified with the underlying microstructural length scale of the material, the method is consistent with the view that, once damage is significant, a damaging cell behaves as a uniform entity. The analyses through which these effects have been studied concerned a unit cell idealizing a periodic array of large voids, connected by material that is capable of nucleating smaller‐scale porosity.