Fatigue Crack Propagation Rate in EUROFER 97 Estimated Using Small Specimens

Pavel Hutař; Luboš Náhlík; Martin Ševčík; Stanislav Seitl; Tomáš Kruml; Jaroslav Polák

doi:10.4028/www.scientific.net/KEM.452-453.325

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 452-453Fatigue Crack Propagation Rate in EUROFER 97...

Fatigue Crack Propagation Rate in EUROFER 97 Estimated Using Small Specimens

Abstract:

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.

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Periodical:

Key Engineering Materials (Volumes 452-453)

Pages:

325-328

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.452-453.325

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Online since:

November 2010

Authors:

Pavel Hutař, Luboš Náhlík, Martin Ševčík, Stanislav Seitl, Tomáš Kruml, Jaroslav Polák

Keywords:

Eurofer 97, Fatigue Crack Growth Rate, J-Integral, Small Fatigue Crack

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