Nonlinear modeling of stable crack growth

0354581 - ÚFM 2011 RIV CZ eng K - Konferenční příspěvek (tuzemská konf.)
Brumek, J. - Strnadel, B. - Dlouhý, Ivo
Nonlinear modeling of stable crack growth.
New Methods of Damage and Failure Analysis of Structural Parts. Ostrava: VŠB - TU Ostrava, 2010 - (Strnadel, B.), s. 403-411. ISBN 978-80-248-2265-5.
[New Methods of Damage and Failure Analysis of Structural Parts. Ostrava (CZ), 06.09.2010-10.09.2010]
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: high strenght steel * arch shape CT and SENB specimens * FE model
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

This paper presents numerical study to predict crack growth rate under fatigue loading in a high pressure cylinder wall made of high strength steel. Experimental fatigue crack growth data on three point bending test samples. were applied to simulate and predict crack growth process using detailed three dimensional parametric finite elements models. The fatigue crack propagation was based on linear elastic fracture mechanics and stress intensity factor determination. Finite element model provides results of crack growth analysis optimized for the stress levels of operating pressure level. Results are plotted on a-N. Results were compared with an experimental fatigue test.
Trvalý link: http://hdl.handle.net/11104/0193552