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Ductile Fracture of honeycombs
Author(s) -
Schmidt I.,
Fleck N. A.
Publication year - 2000
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.200008014119
Subject(s) - materials science , honeycomb , fracture (geology) , base (topology) , yield (engineering) , composite material , hexagonal crystal system , stress (linguistics) , strain energy , stress–strain curve , structural engineering , finite element method , mathematics , deformation (meteorology) , engineering , mathematical analysis , philosophy , crystallography , linguistics , chemistry
Crack growth initiation and subsequent resistance in a hexagonal honeycomb made out of ductile base material is investigated in a numerical study. The elasto‐plastic base material is characterized by its yield strain, failure strain and the ratio of ultimate strength to yield strength, assuming a bilinear stress‐strain relationship. Of the base materials' fracture properties, only the specific fracture energy is prescribed. K‐Resistance curves are calculated under the assumption of small scale yielding.