Change search
ReferencesLink to record
Permanent link

Direct link
Nodule influence on fatigue crack growth thresholds in nodular cast iron
KTH, Superseded Departments, Solid Mechanics.
2000 (English)In: International Journal of Cast Metals Research, ISSN 1364-0461, Vol. 12, no 5, 319-325 p.Article in journal (Refereed) Published
Abstract [en]

The influence of microstructure i.e. nodules (voids) on the fatigue threshold value in nodular cast iron is numerically investigated. It is qualitatively shown that the fatigue threshold value is unaffected by the individual nodules and that the threshold value is proportional to the bulk Young's modulus. Furthermore it is shown that nodules (voids) do not influence the crack tip conditions (stress-intensity factor and crack tip opening displacement) if the voids do not lie very close to the tip for physically long cracks. It is concluded that linear elastic fracture mechanics is valid for these types of materials and no influence of the nodules need be taken into count for fatigue calculations when dealing with long cracks.

Place, publisher, year, edition, pages
2000. Vol. 12, no 5, 319-325 p.
Keyword [en]
fracture mechanics, fatigue, threshold value, nodular cast iron
URN: urn:nbn:se:kth:diva-19741ISI: 000086956500006OAI: diva2:338433
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Nilsson, Fred L.
By organisation
Solid Mechanics
In the same journal
International Journal of Cast Metals Research

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 38 hits
ReferencesLink to record
Permanent link

Direct link