Proceedings Vol. 12 (2006)
ENGINEERING MECHANICS 2006
May 15 – 18, 2006, Svratka, Czech Republic
Copyright © 2006 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 160 - +7p., full text
The contribution deals with bi-material wedges whose stress field is characterized by two stress singular terms. The exponents of stress singularity are generally in the interval (0 , 1). For these cases each of the singularities covers both normal and shear mode of loading. Because of the inherently combined loading mode, it is advantageous to utilize the strain energy density concept. A mean value of the strain energy density factor taken from a numerical solution of particular materials junction is compared to its analytical representation to ascertain values H1 and H2. These values enter to stability criterion to indicate if crack is initiated in the wedge tip.
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