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Proceedings Paper

Comparison of fatigue life predictions on the base of straight and zigzag-like crack models
Author(s): Artem S. Semenov; Siegfried Saehn; Boris E. Melnikov
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Paper Abstract

The influence of crack path configuration on its growth rate is considered. The straight and zigzag-like crack models are compared for the different stages of propagation and various loading conditions. Comparison of numerical results based on elasto-plastic finite element analysis and experimental data has been presented and discussed. The possible modification of classical fatigue lifetime prediction equations are discussed with aim to take into consideration the kinking effect at the initial stage of crack propagation.

Paper Details

Date Published: 1 February 2001
PDF: 10 pages
Proc. SPIE 4348, Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (1 February 2001); doi: 10.1117/12.417668
Show Author Affiliations
Artem S. Semenov, St. Petersburg State Technical Univ. (Russia)
Siegfried Saehn, Dresden Univ. of Technology (Germany)
Boris E. Melnikov, St. Petersburg State Technical Univ. (Russia)


Published in SPIE Proceedings Vol. 4348:
Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
Alexander I. Melker, Editor(s)

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