The Concept of Local Fatigue Strength Extended by Statistical Approaches to Assess Manufacturing Influences such as Residual Stresses

Kristina Buchhöcker; Volker Schulze; Jürgen Hoffmeister; Manfred Bacher-Höchst; Elisabeth Herz

doi:10.4028/www.scientific.net/AMR.996.722

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 996The Concept of Local Fatigue Strength Extended by...

The Concept of Local Fatigue Strength Extended by Statistical Approaches to Assess Manufacturing Influences such as Residual Stresses

Abstract:

This contribution deals with manufacturing induced surface states and their influence on fatigue strength. An extension to the Concept of Local Fatigue Strength is introduced, taking into account the statistical distribution of both residual stresses and work hardening. To validate this new approach, residual stress measurements and fatigue tests on specimens with different machined surfaces were performed. The statistically distributed local fatigue strength is calculated and can be used to derive failure probabilities. These are compared with experimental results.

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Periodical:

Advanced Materials Research (Volume 996)

Pages:

722-728

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.996.722

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Online since:

August 2014

Authors:

Kristina Buchhöcker*, Volker Schulze, Jürgen Hoffmeister, Manfred Bacher-Höchst, Elisabeth Herz

Keywords:

Concept of Local Fatigue Strength, Fatigue, Fatigue Assessment, Manufacturing Residual Stresses

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Creative Commons CC BY 4.0

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* - Corresponding Author

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