Change search
ReferencesLink to record
Permanent link

Direct link
Spring boundary model for a partially closed crack
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
2008 (English)In: International Journal of Engineering Science, ISSN 0020-7225, E-ISSN 1879-2197, Vol. 46, no 2, 182-188 p.Article in journal (Refereed) Published
Abstract [en]

The spring boundary conditions have been widely employed to describe the acoustic properties of rough surfaces in partial contact. Central to this model is the role of the interfacial stiffness. Recently, a singular stiffness model has been proposed to remove inconsistencies which arise when these boundary conditions are used to describe the acoustic response of partially closed cracks with a position-independent and finite stiffness. Here, an alternative solution to this problem is discussed which is based on the micromechanics of rough surfaces in contact. For cracks that are partially closed, it prescribes a finite crack stiffness that varies along the crack faces and, rather than diverging, becomes null within a small but finite neighborhood of the crack tip. The conditions under which the local stiffness of a non-planar crack can be evaluated are also reviewed.

Place, publisher, year, edition, pages
2008. Vol. 46, no 2, 182-188 p.
Keyword [en]
boundary conditions, crack, stiffness
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-36437DOI: 10.1016/j.ijengsci.2007.10.001ISI: 000253185100007ScopusID: 2-s2.0-37049036128OAI: diva2:430783
QC 20110712Available from: 2011-07-12 Created: 2011-07-12 Last updated: 2011-07-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Pecorari, Claudio
By organisation
Marcus Wallenberg Laboratory MWL
In the same journal
International Journal of Engineering Science
Engineering and Technology

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

Altmetric score

Total: 14 hits
ReferencesLink to record
Permanent link

Direct link