Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Modified compact tension test: The influence of the steel bars position
Holušová, Táňa ; Seitl, Stanislav ; Fernández-Canteli, A.
Testing and analysis of fatigue behavior of homogeneous materials, such as concrete or other cement based composites, are one major problem being studied in this scientific field. In this contribution, adaptation of the compact tension test, well known its use in the testing of metallic materials, is pursued for crack propagation rate measurement on cement based composites using cylindrical specimens. In particular, the influence of the steel bars position on the fracture parameters is studied in the modified compact tension test. The numerical study is performed by ATENA 2D. The results are compared by Load-COD diagrams and the variation of the fracture parameters values is discussed.
Probabilistic description of the S–N field of concrete using Weibull and Gumbel fatigue software
Przybilla, C. ; Seitl, Stanislav ; Keršner, Z. ; Canteli, A.
While the problem of deciding which statistical model is the “true one” in fatigue studies has occupied investigators for many years, only the analysis of the lower tail of the fatigue lifetime distribution, i.e. the distribution of minima values, is relevant for design purposes. Accordingly, in this work a probabilistic fatigue model for analysis of the S–N field is suggested after justification of Weibull or Gumbel domains of attraction, and the consequences of its extension to other cases are discussed. Finally, the ProFatigue software is applied for assessment of selected concrete fatigue data.

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