Title: Analysis of the Thermal Fatigue Cracking of 316L Model Pipe Components under Cyclic Down-Shocks
Authors: NILSSON KARL-FREDRIKTAYLOR NIGEL
Other Contributors: PAFFUMI ELENA
Citation: Proceedings of the 2005 ASME Pressure Vessels and Piping Division Conference p. PVP2005-71738
Publisher: American Society of Mechanical Engineers (ASME)
Publication Year: 2005
JRC N°: JRC30532
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30532
Type: Articles in periodicals and books
Abstract: Cylindrical test pieces of low-carbon austenitic steel 316L are subjected to cyclic thermal loads in a specially designed rig. Intermittent stops allowed measurement of cycles to initiation and of the propagation of the networks of axial and circumferential cracks. These results have been used to validate an analysis procedure, based on a sequentially coupled thermal-stress finite element analysis. It is found that the initiation life can be reliably predicted from the stain range at the inner surface, while a simplified semi-elliptical crack model best described the subsequent crack growth.
JRC Directorate:Energy, Transport and Climate

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