PSI - Issue 5

Chmelko Vladimír et al. / Procedia Structural Integrity 5 (2017) 825–831 Chmelko, V., Margetin, M./ Structural Integrity Procedia 00 (2017) 000 – 000

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The experimentally obtained deformations were confronted with the diagrams of these magnitudes obtained by the above-described computational transformation method that was programmatically processed. Comparison of these deformations is shown in Fig. 5.The comparison of these two measured signals indicates a very good match between the computational transformation and the direct measurement of the strains. A very good agreement was also demonstrated in the other verifications, which are described in more detail by Chmelko 2006. A material characteristic for the cyclic loading of the random time-depending process and the algorithm for the continuous transformation of the nominal loading process into the root of the structural notch was defined. Applying the above transformation algorithm is for estimating the fatigue life of structures with notches which shape does not allow a direct measurement or the operational loading has a time-depending random character. The algorithm is possible to use also for recalculation of the loading process into loading strain process and vice versa.

Acknowledgements This work was supported by the Research & Development Operational Programme funded by the ERDF ITMS: 26240220084 Science city Bratislava.

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