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Damage-based interface model: application to the degradation and failure of a polycrystalline microstructure
Jönköping University, School of Engineering, JTH, Mechanical Engineering.
1997 (English)Doctoral thesis, monograph (Other scientific)
Abstract [en]

A constitutive model is introduced for material interfaces. The model is based on damage coupled to plastic slip and dilatation, and can describe the successive degradation and failure of an interface. The main application of the interface model is in the context of a mesomechanics analysis of a polycrystalline microstructure which may consist of two phases. FE-calculations are carried out for a unit cell of microstructure. A sensitivity analysis is carried out for possible variation of the interfacial parameters. Localization and shear bands are detected in the analytically predicted range.

Place, publisher, year, edition, pages
Doktorsavhandlingar vid Chalmers Tekniska Hogskola (1310), pp. 1-160 , 1997. , 160 p.
Identifiers
URN: urn:nbn:se:hj:diva-5039OAI: oai:DiVA.org:hj-5039DiVA: diva2:35859
Available from: 2008-01-03 Created: 2008-01-03

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Citation style
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