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A numerical analysis of the fracture toughness in phase‐field modelling of adhesive fracture
Author(s) -
HansenDörr Arne C.,
Hennig Paul,
Kästner Markus,
Weinberg Kerstin
Publication year - 2017
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201710094
Subject(s) - adhesive , fracture toughness , materials science , fracture (geology) , cracking , composite material , phase (matter) , interface (matter) , toughness , field (mathematics) , scale (ratio) , physics , mathematics , wetting , layer (electronics) , sessile drop technique , quantum mechanics , pure mathematics
We propose and analyse a phase‐field model which allows for adhesive interface failure between two materials by a local reduction of the critical fracture toughness over a given length scale in the vicinity of the interface. A parameter study is carried out which reveals a significant dependence of the cracking behaviour on the ratio between the length scale of the crack phase‐field model and the width of the adhesive interface. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)