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DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth

S. Stekovic, Paul Jones, B. Engel, Mark Whittaker Orcid Logo, V. Norman, J.P. Rouse, S. Pattison, C.J. Hyde, P. Härnman, Robert Lancaster Orcid Logo, D. Leidermark, J. Moverare

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

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

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DOI (Published version): 10.1016/j.ijfatigue.2020.105675

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: Faculty of Science and Engineering
Start Page: 105675

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