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Modeling of Uranium Alloy Response in Plane Impact and Reverse Ballistic Experiments.
- Source :
-
AIP Conference Proceedings . 2002, Vol. 620 Issue 1, p1306. 4p. - Publication Year :
- 2002
-
Abstract
- The dynamic behavior of a solution heat-treated, water-quenched and aged U-0.75wt%Ti alloy was studied in planar (disk-on-disk) and reverse ballistic (disk-on-rod) impact experiments performed with a 25 mm light-gas gun. The impact velocity ranged from 100 to 500 m/sec. The impacted samples were softly recovered for further metallographic examination. The VISAR records of the sample free surface velocity, obtained in planar impact experiments, were simulated with 1-D hydrocode for calibrating the parameters of modified Steinberg-Cochran-Guinan (SCG) constitutive equation of the alloy. The same SCG equation was employed in 2-D AUTODYN simulation of the alloy response in the reverse ballistic experiments, with VISAR monitoring of the lateral sample surface velocity. Varying the parameters of the strain-dependent failure model allows relating the features of the recorded velocity profiles with the results of the examination of the damaged samples. [ABSTRACT FROM AUTHOR]
- Subjects :
- *URANIUM alloys
*IMPACT (Mechanics)
*BALLISTICS
Subjects
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 620
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 6922394