Comparison of crack propagation rates in selected structural \ncomponents made from AISI 304 grades: Three-point bending test

0566419 - ÚFM 2025 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
Juhászová, Tereza - Miarka, Petr - Jindra, D. - Kala, Z. - Seitl, Stanislav
Comparison of crack propagation rates in selected structural
components made from AISI 304 grades: Three-point bending test.
Procedia Structural Integrity. Vol. 42. Amsterdam: Elsevier, 2022 - (Moreira, P.; Reis, L.), s. 1090-1097. ISSN 2452-3216.
[ECF23 - European Conference on Fracture /23./. Funchal (PT), 27.06.2022-01.08.2022]
Grant CEP: GA ČR(CZ) GA20-00761S
Institucionální podpora: RVO:68081723
Klíčová slova: Paris law * FEM * AISI 304 * fatigue * CMOD
Obor OECD: Civil engineering

This study focuses on crack propagation rates of AISI 304 stainless-steel specimens made from selected structural components
experimentally tested in three-point bending. Components of two productions loaded with constant force with selected stress ratio
were submitted to cyclic loading in order to measure crack opening displacement. Experimentally obtained data were evaluated
using 3D modelling in finite element modeling software intending to determine fracture mechanical parameters. The tool to
describe fatigue behavior was Paris’ law, used to describe crack propagation in intermediate crack growth rate range. Paris–Erdogan
equation was evaluated as a fitting of linear part of the graphical plot of crack growth rate with respect to the stress intensity range
and material constants were gained from numerical description of the relation. Comparison of fatigue crack behavior in AISI 304
steel components of two productions was studied and evaluated.
Trvalý link: https://hdl.handle.net/11104/0352968