The role of cohesive properties on intergranular crack propagation in brittle polycrystals

Z. Shabir*, E. Van der Giessen, C. A. Duarte, A. Simone

*Bijbehorende auteur voor dit werk

Onderzoeksoutput: ArticleAcademicpeer review

27 Citaten (Scopus)
288 Downloads (Pure)

Samenvatting

We analyze intergranular brittle cracking of polycrystalline aggregates by means of a generalized finite element method for polycrystals with cohesive grain boundaries and linear elastic grains. Many random realizations of a polycrystalline topology are considered and it is shown that the resulting crack paths are insensitive to key cohesive law parameters such as maximum cohesive strength and critical fracture energy. Normal and tangential contributions to the dissipated energy are thoroughly investigated with respect to mesh refinement, cohesive law parameters and randomness of the underlying polycrystalline microstructure.

Originele taal-2English
Artikelnummer035006
Pagina's (van-tot)035006-1-035006-21
Aantal pagina's21
TijdschriftModelling and Simulation in Materials Science and Engineering
Volume19
Nummer van het tijdschrift3
DOI's
StatusPublished - apr-2011

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