Abstract
The ability to understand the factors that contribute to the scatter inherent in the fatigue lives of metallic structures is critical both to ensuring continued airworthiness and to designing optimum structures. This paper focuses on the effect of variations in a material's cyclic stress intensity threshold (Kthr) on fatigue crack growth. It then shows that the NASGRO equation can be used to account for the scatter in the crack growth rate seen in a number of classical fatigue experiments. The nature of the tests needed to understand the scatter seen in fatigue crack growth in operational aircraft is also discussed.
| Original language | English |
|---|---|
| Title of host publication | 8th Australasian Congress on Applied Mechanics, ACAM 8 |
| Subtitle of host publication | Melbourne, Australia, 25-26 November 2014 |
| Place of Publication | Barton ACT Australia |
| Publisher | Engineers Australia |
| Pages | 33-40 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781922107350 |
| ISBN (Print) | 9781922107350 |
| Publication status | Published - 1 Nov 2014 |
| Event | Australasian Congress on Applied Mechanics 2014 - Melbourne, Australia Duration: 25 Jan 2014 → 26 Nov 2014 Conference number: 8th |
Conference
| Conference | Australasian Congress on Applied Mechanics 2014 |
|---|---|
| Abbreviated title | ACAM 2014 |
| Country/Territory | Australia |
| City | Melbourne |
| Period | 25/01/14 → 26/11/14 |
| Other | as Part of Engineers Australia Convention 2014 |