Number of the records: 1
Quantification of the influence of vertex singularities on fatigue crack behavior
- 1.0332040 - ÚFM 2010 RIV NL eng J - Journal Article
Hutař, Pavel - Náhlík, Luboš - Knésl, Zdeněk
Quantification of the influence of vertex singularities on fatigue crack behavior.
Computational Materials Science. Roč. 45, č. 3 (2009), s. 653-657. ISSN 0927-0256. E-ISSN 1879-0801
R&D Projects: GA ČR(CZ) GA101/05/0320; GA ČR GP106/06/P239
Institutional research plan: CEZ:AV0Z20410507
Keywords : Vertex singularity * Generalized stress intensity factor * Stress singularity * Fatigue crack * V-notch
Subject RIV: JL - Materials Fatigue, Friction Mechanics
Impact factor: 1.522, year: 2009
The effect of vertex singularity on fatigue crack behavior is presented in the article. The methodology based on generalized stress intensity factor and model of V-notch is used for reliable estimation of the fatigue crack growth rate in the area close to the free surface, where the effect of the vertex singularity is dominant. It is shown that decrease of the crack singularity exponent close to the vertex point leads to a decrease in the fatigue crack growth rate and contributes to a typical curved crack front observed experimentally for through crack.
Permanent Link: http://hdl.handle.net/11104/0177396
Number of the records: 1