Evaluation of fatigue properties of S355 JO steel using ProFatigue and ProPagation software

0506192 - ÚFM 2020 RIV NL eng C - Conference Paper (international conference)
Seitl, Stanislav - Miarka, Petr - Klusák, Jan - Kala, Z. - Krejsa, M. - Blason, S. - Canteli, A.
Evaluation of fatigue properties of S355 JO steel using ProFatigue and ProPagation software.
Procedia Structural Integrity. In: ECF22 - Loading and Environmental effects on Structural Integrity. Amsterdam: Elsevier, 2018 - (Sedmak, A.; Radakovič, Z.; Rakin, M.), s. 1494-1501. Procedia Structural Integrity, 13. ISSN 2452-3216.
[ECF22 - European Conference on Fracture /22./. Belgrade (RS), 26.08.2018-31.08.2018]
R&D Projects: GA ČR GA17-01589S
Institutional support: RVO:68081723
Keywords : crack-growth * models * behavior * Steel bridge * 5355 j0 * fatigue * ProFatigue * ProPagation * Wohler curve * crack growth rate curve
OECD category: Audio engineering, reliability analysis

The use of S355 high strength steel in civil engineering design of structural elements of cranes, bridges or simple engineering parts allows material and economical savings to be achieved meeting the strict construction requirements. Knowledge of fatigue resistance of the material plays the key role during design and maintenance of the civil engineering structures. With this aim, the fatigue properties (Wohler field and crack propagation rate curve) of the S355 JO steel are analyzed according to both traditional and probabilistic models. In the latter case, the ProFatigue and ProPagation software programs are applied in the assessment of experimental fatigue data of S355 JO for derivation of the probabilistic S N field and fatigue crack growth rate curve, respectively, where data consist of results for different number of various investigated specimens subject to low cycle and high cycle fatigue with focus on the rolling direction. The results obtained are compared with the customary Basquin formula for the Wohler-curve and Paris law for the crack growth rate curve, both represented as straight lines in a double-logarithmic scale. (C) 2018 The Authors. Published by Elsevier B.V.
Permanent Link: http://hdl.handle.net/11104/0300564