Analytical vs Numerical Calculation of Fatigue Life for Different Welded Joint Regions
| Autor: | Milan Kljajin, Abubkr Hemer, Mihajlo Arandjelović, Jasmina Lozanovic Sajic, Ljubica Milović |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
fatigue life business.industry fracture mechanics welded joint region General Engineering Fracture mechanics 02 engineering and technology Welding Structural engineering 021001 nanoscience & nanotechnology law.invention 020303 mechanical engineering & transports 0203 mechanical engineering law lcsh:TA1-2040 0210 nano-technology business lcsh:Engineering (General). Civil engineering (General) Joint (geology) |
| Zdroj: | Tehnički vjesnik Volume 27 Issue 6 Tehnički Vjesnik, Vol 27, Iss 6, Pp 1931-1937 (2020) |
| ISSN: | 1330-3651 1848-6339 |
| Popis: | This research will show the analytical way of determining the remaining life of a welded joint with a fatigue crack initiated in its heat affected zone. The calculation will be divided into two stages, since the fatigue crack propagated through the heat affected zone, and then through the parent material. The analysis will be related to specimens with different fatigue properties taken into account for both regions. These calculations included a number of models, since different crack lengths were used for the heat affected zone and the parent material. There were three pairs of different HAZ vs PM fatigue crack lengths, always with the assumption that the total crack length is 5 mm, due to measuring range of the used measuring foils. The aim of this analysis was to apply method typically used in fracture mechanics in order to determine the number of cycles in a welded joint with an initiated fatigue crack, depending on a number of parameters. Obtained results were then compared to the results from the numerical analysis for the same cases. While the total number of cycles was mostly unaffected by these changes, some noticeable differences were observed between individual welded joint regions in question, the heat affected zone and the parent material. |
| Databáze: | OpenAIRE |
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