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Transferability of Fracture Mechanical Characteristics
- 1.0177828 - UFM-A 20023026 RIV NL eng M - Monography Chapter
Vlček, Libor - Chlup, Zdeněk - Kozák, Vladislav
Problems in Q-Parameters Calculations.
Transferability of Fracture Mechanical Characteristics. 78. Dordrecht: Kluwer Academic Publishers, 2002 - (Dlouhý, I.), s. 79-92. NATO Science Series. Mathematics, Physics and Chemistry. 2
R&D Projects: GA MŠMT ME 303; GA ČR GA101/00/0170
Institutional research plan: CEZ:AV0Z2041904
Keywords : stress-strain curve * deformation hardening * J-integral
Subject RIV: JL - Materials Fatigue, Friction Mechanics
The present work deals with determination of the sensitivity detached parameters describing fracture behaviour of body with crack with respect to the character change of true stress-strain curve. The typical low carbon cast steel stress-strain curve with dominant region of Lűders deformation was exerted. This paper presents the consideration on the change judgement of J-integral and Q-parameter as the base parameters of two parameters fracture mechanics. The attention is paid on the influence of deformation hardening exponent of the idealised true stress-strain material curve described by the Ramberg-Osgood relation to Q-parameter. All computations are based on the 3D elastic-plastic analyses using FEM and supported by mechanical tests.
Permanent Link: http://hdl.handle.net/11104/0074732
Number of the records: 1