Interaction of a fatigue crack and a corrosion dimple \n in a high-strength steel specimen

0566415 - ÚFM 2025 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
Malíková, Lucie - Doubek, P. - Juhászová, Tereza - Klusák, Jan - Seitl, Stanislav
Interaction of a fatigue crack and a corrosion dimple
in a high-strength steel specimen.
Procedia Structural Integrity. Vol. 42. Amsterdam: Elsevier, 2022 - (Moreira, P.; Reis, L.), s. 1082-1089. ISSN 2452-3216.
[ECF23 - European Conference on Fracture /23./. Funchal (PT), 27.06.2022-01.08.2022]
Grant CEP: GA ČR(CZ) GA21-14886S
Institucionální podpora: RVO:68081723
Klíčová slova: High-strength steel * finite element analysis * crack behaviour * corrosion
Obor OECD: Civil engineering

Both corrosion and fatigue crack propagation are the most common phenomena degrading metal/steel structures. Therefore, an
extensive study is performed on this topic. Namely, results of a numerical analysis made on 2D model of a rectangular specimen
containing a corrosion pit near a short edge crack that is arbitrarily oriented towards the cyclic tensile loading. Thus, I+II mixed
mode conditions are created and the behavior of the crack is investigated by means of the concept of the equivalent stress intensity
factor range. Discussion on effect of various parameters (such as crack length, corrosion pit size, crack inclination angle) on fatigue
crack propagation is presented and important conclusions, that can help in further numerical/experimental analyses, are
summarized.
Trvalý link: https://hdl.handle.net/11104/0352971