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On the prediction of crack propagation in cast steel specimens
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
2005 (English)In: Competent Design by Castings: Improvements in a Nordic Project / [ed] Samuelsson, J; Marquis, G; Solin, J, ESPOO: TECHNICAL RESEARCH CENTRE FINLAND , 2005, Vol. 237, 251-272 p.Conference paper (Refereed)
Abstract [en]

This investigation deals with the fatigue behaviour of cast steel with respect to defects, crack initiation, crack growth and material parameters. It constitutes the initial part of a larger work in cast materials. The main objectives have been to validate calculations made by FEM and Paris law with data from fatigue tests and to confirm material parameters for Pan's law. Furthermore, the results where put against calculations obtained from the fracture mechanic software AF-GROW. During the accomplishment some difficulties was experienced concerning the initiation of the crack, with result that there where just a few specimens suitable for evaluation by LEFM. However, some conclusions concerning the crack growth behaviour could yet be done. The results in general showed good correspondence, the results from AF-GROW included. Most divergences could be explained by residual stresses and, to some extent, the initiation problems.

Place, publisher, year, edition, pages
, VTT SYMPOSIA, ISSN 0357-9387 ; 237
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-43221ISI: 000231578700015ScopusID: 2-s2.0-42149098403ISBN: 951-38-6298-4OAI: diva2:447802
Seminar on Competent Design by Castings (GJUTDESIGN -2005). Espoo, FINLAND. JUN 13-14, 2005
QC 20111013Available from: 2011-10-13 Created: 2011-10-13 Last updated: 2012-03-19Bibliographically approved

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