The model of fatigue crack growth in high pressure cylinder wall

0364074 - ÚFM 2012 RIV US eng C - Conference Paper (international conference)
Brumek, J. - Strnadel, B. - Dlouhý, Ivo
The model of fatigue crack growth in high pressure cylinder wall.
Proceedings of the ASME Pressure Vessels and Piping Conference 2010. vol. 5. New York: ASME, 2010, s. 635-639. ISBN 978-0-7918-4924-8.
[ASME Pressure Vessels and Piping Division/K-PVP Conference. Bellevue, WA (US), 18.07.2010-22.07.2010]
Institutional research plan: CEZ:AV0Z20410507
Keywords : předictions * closure
Subject RIV: JL - Materials Fatigue, Friction Mechanics

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 element 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 S-N curves and the disparity was explained in terms of crack growth rates near threshold stress intensity factor range. Results were compared with an experimental fatigue test.
Permanent Link: http://hdl.handle.net/11104/0199651