A post-processor for fatigue crack growth analysis based on a finite element stress field

✍ Scribed by A. Wormsen; A. Fjeldstad; G. Härkegård

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 456 KB
• Volume: 197
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/j.cma.2007.09.012

✦ Synopsis

In this paper the algorithm needed for performing a crack growth analysis of a three-dimensional component by post-processing results from a standard finite element stress analysis is given. Weight functions are used for calculating the stress intensity factor for an embedded crack and a surface crack. Defects are generated in several nominally equal components, and crack growth calculations are carried out by using a short crack model to determine the probability of component fatigue failure. The algorithm has been implemented in a finite element post-processor.