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DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth / S. Stekovic, Paul Jones, B. Engel, Mark Whittaker, V. Norman, J.P. Rouse, S. Pattison, C.J. Hyde, P. Härnman, Robert Lancaster, D. Leidermark, J. Moverare

International Journal of Fatigue, Volume: 138, Start page: 105675

Swansea University Authors: Paul Jones, Mark Whittaker, Robert Lancaster

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Abstract

The current paper presents work on identification and evaluation of a range of factors influencing accuracy and comparability of data generated by three laboratories carrying out stress-controlled thermo-mechanical fatigue crack growth tests. It addresses crack length measurements, heating methods a...

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Published in: International Journal of Fatigue
ISSN: 0142-1123
Published: Elsevier BV 2020
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa54215
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Abstract: The current paper presents work on identification and evaluation of a range of factors influencing accuracy and comparability of data generated by three laboratories carrying out stress-controlled thermo-mechanical fatigue crack growth tests. It addresses crack length measurements, heating methods and temperature measurement techniques. It also provides guidance for pre-cracking and use of different specimen geometries as well as Digital Image Correlation imaging for crack monitoring. The majority of the tests have been carried out on a coarse grain polycrystalline nickel-base superalloy using two phase angles, Out-of-Phase and In-Phase cycles with a triangular waveform and a temperature range of 400–750 °C.
Keywords: code of practice, crack growth, experiment development, internal round robin, thermo-mechanical fatigue
College: College of Engineering
Start Page: 105675