| Autor: |
Sołtysiak, Robert, Boroński, Dariusz, Kotyk, Maciej |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2016, Vol. 1780 Issue 1, p1-7, 7p, 2 Color Photographs, 3 Diagrams, 2 Charts, 3 Graphs |
| Abstrakt: |
When determining the characteristics of the fatigue crack growth rate, it is necessary, inter alia, to measure the crack length growth which must be combined with the number of accumulated load cycles. The length of the crack is determined using different testing methods. Recently, there is an increased interest in optical systems based on digital image correlation methods. These methods have however some limitations as regards, inter alia, the sharpness of pictures taken during tests e.g. at cryogenic temperatures. This paper presents a comparative analysis of the crack length "a" as a function of a crack-opening-displacement "d" obtained by experimental and numerical method. The tests were performed under ambient temperature for CT type specimens made of Ti6Al4V titanium alloy. Numerical research was carried out by finite element method using ABAQUS software. Satisfactory results were obtained which gave the reasons for establishing a hybrid methods for the crack length determination. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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