Comparison of fatigue crack propagation behaviour in two steel grades S235, S355 and a steel from old crane way

0532866 - ÚFM 2024 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Seitl, Stanislav - Pokorný, Pavel - Miarka, Petr - Klusák, Jan - Kala, Z. - Kunz, Ludvík
Comparison of fatigue crack propagation behaviour in two steel grades S235, S355 and a steel from old crane way.
MATEC Web of Conferences. Vol. 310. Paris: EDP Sciences, 2020, č. článku 00034. E-ISSN 2261-236X.
[International scientific conference structural and physical aspects of construction engineering (SPACE 2019) /4./. Štrbské pleso (SK), 13.11.2019-15.11.2019]
Grant CEP: GA ČR GA17-01589S
Institucionální podpora: RVO:68081723
Klíčová slova: fatigue * crack propagation * steel * S235 * S355
Obor OECD: Civil engineering

Utilization of various steel grades in civil engineering allows designing bridges, bridge elements or simple structures according to their fracture mechanical properties. The service intervals of structures, which are going to be in use for a long time, cannot be calculated only on the basis of tensile and brittle fracture properties but also on the knowledge of the resistance to the fatigue crack growth. This contribution presents a comparison of the fatigue behaviour of two modern steel grades S235 J2, S355 J2 and a steel extracted from an old crane way. The comparison of these steel grades is done by fatigue crack propagation tests (the results of the experimental tests are described using concept of the stress intensity factor range ΔK). The fatigue properties are discussed and recommendations for the use of the steels are stated.
Trvalý link: http://hdl.handle.net/11104/0311440