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A model for short crack propagation in polycrystalline materials.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).ORCID iD: 0000-0001-7182-0872
2006 (English)In: Engineering Fracture Mechanics, Vol. 73, no 2, 223-232 p.Article in journal (Refereed) Published
Abstract [en]

A model for microstructurally short crack propagation in a grain structure of a polycrystalline material is developed. The crack propagation model is based on a crystal plasticity model and a microstructurally short crack propagation model in the spirit of the model by Navarro and de los Rios [A model for short fatigue crack propagation with an interpretation of the short–long crack transition. Fatigue Fract Eng Mater Struct 1987;10:169–86]. Numerical examples, where the combined crystal plasticity and crack propagation model is implemented in a model of a microstructure representing a duplex stainless steel, concludes the paper. Results showing how the misorientation of the crack- and slip-directions between two adjacent austenitic grains influences the crack propagation rate, as the crack propagates across their common grain boundary, are given.

Place, publisher, year, edition, pages
2006. Vol. 73, no 2, 223-232 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-5970Local ID: 7452OAI: oai:DiVA.org:ri-5970DiVA: diva2:963805
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2017-08-23Bibliographically approved

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