Interactive Resource icon  Fatigue Crack Propagation

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Description: The fatigue analysis shown in this animation employs the defect tolerant approach. This approach is based on the premise that all materials contain inherent flaws. The useful fatigue life is then defined as the number of cycles required to propagate pre-existing flaws to a critical size. The critical size is often related to the critical size for unstable crack propagation. To use this approach, it is necessary to determine the crack growth rate.
Keywords: fatigue • fatigue analysis test • Paris law • defect tolerant approach
Categories: Science approaches > Deformation & failure > Fatigue
Materials > Metals & alloys > Aluminium & alloys
Properties > Mechanical & thermal
Testing, analysis & experimentation > Mechanical testing
Created by: Hugh Shercliff, University of Cambridge
Joseph Robson, Manchester Materials Science Centre
MATTER, The University of Liverpool
Contributions: John Humphreys, Manchester Materials Science Centre
Christian Leppin, Alcan Fabrication Europe
Published by: European Aluminium Association, Brussels
License: This resource is released under the Creative Commons Attribution Non-Commercial No Derivatives license (2.0 UK: England & Wales).
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Date created: 12 January 2005
Date added: 09 June 2010
Resource ID: 2835