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On the Crack Initiated From the Bi-material Notch Tip
- 1.0354596 - ÚFM 2011 RIV CH eng J - Journal Article
Profant, T. - Klusák, Jan - Kotoul, M.
On the Crack Initiated From the Bi-material Notch Tip.
Key Engineering Materials. 452-453, - (2011), s. 441-444. ISSN 1013-9826.
[Fracture and Damage Mechanics. Nagasaki, 20.09.2010-22.09.2010]
R&D Projects: GA ČR GAP108/10/2049; GA ČR GA101/08/0994
Institutional research plan: CEZ:AV0Z20410507
Keywords : orthotropic bi-material notch * crack initiation * Matched asymptotic procedure
Subject RIV: JL - Materials Fatigue, Friction Mechanics
The bi-material notch composed of two orthotropic parts is considered. The radial and tangential stresses and strain energy density is expressed using the Stroh-Eshelby-Lekhnitskii formalism for the plane elasticity. The potential direction of the crack initiation is determined from the maximum mean value of the tangential stresses and local minimum of the mean value of the generalized strain energy density factor in both materials. Matched asymptotic procedure is used to derive the change of potential energy for the debonding crack and the crack initiated in the determined direction.
Permanent Link: http://hdl.handle.net/11104/0193565
Number of the records: 1