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.
| Original language | English |
|---|---|
| Pages (from-to) | 1306-1309 |
| Journal | AIP Conference Proceedings |
| Volume | 620 |
| DOIs | |
| State | Published - 1 Jul 2002 |
Keywords
- Ballistics
- Dynamic Characteristics
- Failure Analysis
- Heat Treatment
- Shock Waves
- Uranium Alloys
- Work Hardening
- High-pressure and shock wave effects in solids and liquids
- Metals semimetals and alloys
- Deformation and plasticity