On the direction of a crack initiated from an orthotropic bi-material notch composed of materials with non-uniform fracture mechanics properties

0385497 - ÚFM 2013 RIV CH eng J - Journal Article
Profant, T. - Klusák, Jan - Ševeček, O. - Kotoul, M.
On the direction of a crack initiated from an orthotropic bi-material notch composed of materials with non-uniform fracture mechanics properties.
Key Engineering Materials. 525-526, č. 1 (2013), s. 545-548. ISSN 1013-9826.
[Fracture and Damage Mechanics /11./. Xi'an, 18.09.2012-21.09.2012]
R&D Projects: GA ČR GA101/09/1821; GA ČR GAP108/10/2049
Institutional support: RVO:68081723
Keywords : Orthotropic bi-material notch * generalized stress intensity factor * complex potentials
Subject RIV: JL - Materials Fatigue, Friction Mechanics

The assessment of conditions of crack initiation in a tip of a bi-material notch composed of two orthotropic materials is dealt. The assessment of the bi-material orthotropic notch stability criteria based on standard linear elastic fracture mechanics can lead to incorrect results due to a change of fracture mechanics properties. The change of the fracture mechanics properties are taken into account in the discussed stability criterion. It is shown that the criterion of this kind can qualitatively and quantitatively influence the results, and it contributes to more reliable assessment of components with geometrical and/or material discontinuity.
Permanent Link: http://hdl.handle.net/11104/0215226