Fatigue crack propagation rate in EUROFER 97 estimated using small specimens

0353710 - ÚFM 2011 RIV CH eng J - Článek v odborném periodiku
Hutař, Pavel - Náhlík, Luboš - Ševčík, Martin - Seitl, Stanislav - Kruml, Tomáš - Polák, Jaroslav
Fatigue crack propagation rate in EUROFER 97 estimated using small specimens.
Key Engineering Materials. Roč. 452-453, - (2011), s. 325-328. ISSN 1013-9826
Grant CEP: GA ČR GA106/09/1954; GA ČR GA101/09/0867
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: small fatigue cracks * Eurofer 97 * J-integral * fatigue crack growth rate
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

The proposed paper describes fatigue damage evolution in Eurofer 97 reduced activation ferritic-martensitic steel. The short crack growth study was performed on small cylindrical specimens using an MTS 880 servohydraulic machine at constant strain amplitude. Based on the fatigue crack growth data obtained and corresponding 3D finite element analysis Paris law region of the fatigue curve were estimated. The results obtained were compared with standard determination of the fatigue crack growth rate according to ASTM using CT specimens. The presented results can help to transfer experimental data measured on small specimens to large structures and vice versa.
Trvalý link: http://hdl.handle.net/11104/0192875