Modern fatigue analysis is providing analytical solutions to problems that could previously be addressed only by methods that were highly empirical and often inaccurate. We can now focus on five crucial steps to successful fatigue analysis. Working from elastic finite element models, the five steps are: 1) the calculation of elastic-plastic stresses and strains for complex loading and biaxial stress states; 2) modification of the endurance limit to allow for the interaction between small and larger cycles; 3) the calculation of the life to crack initiation; 4) critical plane searching to determine the orientation of a potential crack; 5) and an assessment of whether the crack will propagate to failure. The paper describes these steps and the underlying theories, and gives industrial examples of their application to real components.
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ASME 2009 International Manufacturing Science and Engineering Conference
October 4–7, 2009
West Lafayette, Indiana, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-4361-1
PROCEEDINGS PAPER
Developing a Durability by Design Process Available to Purchase
John Draper
John Draper
Safe Technology Limited, Sheffield, UK
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John Draper
Safe Technology Limited, Sheffield, UK
Paper No:
MSEC2009-84064, pp. 311-319; 9 pages
Published Online:
September 20, 2010
Citation
Draper, J. "Developing a Durability by Design Process." Proceedings of the ASME 2009 International Manufacturing Science and Engineering Conference. ASME 2009 International Manufacturing Science and Engineering Conference, Volume 1. West Lafayette, Indiana, USA. October 4–7, 2009. pp. 311-319. ASME. https://doi.org/10.1115/MSEC2009-84064
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