| Autor: |
Koller, D. D., Gray, G. T., Hixson, R. S. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 12/12/2007, Vol. 955 Issue 1, p553-556, 4p, 1 Diagram, 1 Chart, 4 Graphs |
| Abstrakt: |
Dynamic damage evolution in materials is of growing interest, in particular, the role of defect structure on material strength during a dynamic experiment. Many studies in the past have seen strong correlations between the shockwave profile and the defect structure during dynamic experiments, such as quasi-elastic release behavior. Bauschinger effect is a microstructurally controlled process in which a material displays a change in stress-strain characterisitics due to a change in the defect structure. Studies on depleted uranium have revealed indications of Bauschinger effect being a mechanism present during quasi-static experiments, which could be a result of the large amount of twinning observed in these materials. As work continues to improve strength models, it becomes imperitive to understand the role of defect structure on the properties of materials under dynamic conditions. The study reported here is an observation of the release wave behavior in depleted uranium that first undergoes compressive shock loading followed by a reversal of the loading direction upon release. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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