J-Q characterization of propagating cracks by FEM-remeshing
1997 (English)In: Computational Mechanics, ISSN 0178-7675, E-ISSN 1432-0924, Vol. 20, no 1-2, 181-185 p.Article in journal (Refereed) Published
An investigation is performed as to the extent J and Q calculated for successively stationary crack positions can be used to characterize the state at a growing crack in a corresponding geometry. FE models of single-edge notch bend and double-edge cracked panel specimens are used to cover a variation of constraint levels. The stress and strain fields are compared between different specimens at equal J-values and Q-values, respectively. A remeshing technique is used to enhance the efficiency of the analysis. The commercial FE-code ABAQUS is used and substantial crack growth is achieved with less computer time and better accuracy than in conventional FE analysis.
Place, publisher, year, edition, pages
Springer , 1997. Vol. 20, no 1-2, 181-185 p.
IdentifiersURN: urn:nbn:se:kth:diva-49388DOI: 10.1007/s004660050237ISI: A1997XN81700030OAI: oai:DiVA.org:kth-49388DiVA: diva2:459561
QC 201111292011-11-252011-11-252011-11-29Bibliographically approved