$Finite-element investigation of fracture behaviour in elastic–plastic film bonded to elastic substrate$

Finite-element investigation of fracture behaviour in elastic–plastic film bonded to elastic substrate

In the present work, the finite element method is used to calculate the J integral and the size of plastic zone at the interfacial crack tip in aluminium film bonded to a ceramic substrate. The plastic behaviour of the stress–strain curve of the aluminium is approximated by a Ramberg–Osgood function...

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Veröffentlicht in:	Computational materials science 2008-12, Vol.44 (2), p.835-837
Hauptverfasser:	Belhouari, M., Gouasmi, S., Bachir Bouiadjra, B., Achour, T., Amiri, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Fatigue, brittleness, fracture, and cracks Interface crack tip J Integral Mechanical and acoustical properties of condensed matter Mechanical properties of solids Physics Plastic zone Substrate
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Beschreibung
Zusammenfassung:	In the present work, the finite element method is used to calculate the J integral and the size of plastic zone at the interfacial crack tip in aluminium film bonded to a ceramic substrate. The plastic behaviour of the stress–strain curve of the aluminium is approximated by a Ramberg–Osgood function and the ceramic has a linear elastic behaviour. The effects of the metal thickness and the crack length on the variation of the J integral at the crack tip were highlighted.
ISSN:	0927-0256 1879-0801
DOI:	10.1016/j.commatsci.2008.06.019