The Fatigue Damage Accumulation on Systems of Concentrators
World Academy of Science, Engineering and Technology: International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering 2011
Aleksandrs Urbahs, Mukharbiy Banov, Vladislav Turko

Fatigue tests of specimen’s with numerous holes are presented. The tests were made up till fatigue cracks have been created on both sides of the hole. Their extension was stopping with pressed plastic deformation at the mouth of the detected crack. It is shown that the moments of occurrence of cracks on holes are stochastically dependent. This dependence has positive and negative correlation relations. Shown that the positive correlation is formed across of the applied force, while negative one – along it. The negative relationship extends over a greater distance. The mathematical model of dependence area formation is represented as well as the estimating of model parameters. The positive correlation of fatigue cracks origination can be considered as an extension of one main crack. With negative correlation the first crack locates the place of its origin, leading to the appearance of multiple cracks; do not merge with each other.


Keywords
Correlation analysis, fatigue damage accumulation, local area, mathematical model.
Hyperlink
http://waset.org/publications/4448/the-fatigue-damage-accumulation-on-systems-of-concentrators

Urbahs, A., Banov, M., Turko, V. The Fatigue Damage Accumulation on Systems of Concentrators. World Academy of Science, Engineering and Technology: International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 2011, Vol. 5, No. 11, pp.934-939. ISSN 2010-376X. e-ISSN 2010-3778.

Publication language
English (en)
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