STUDY ON TANTALUM SPALL AT VERY HIGH-STRA IN RATES

Authors
PRIOU P DOMMANGET M CLERC R
Citation
P. Priou et al., STUDY ON TANTALUM SPALL AT VERY HIGH-STRA IN RATES, Journal de physique. IV, 4(C8), 1994, pp. 295-300
Citations number
4
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
4
Issue
C8
Year of publication
1994
Pages
295 - 300
Database
ISI
SICI code
1155-4339(1994)4:C8<295:SOTSAV>2.0.ZU;2-W
Abstract
Simulations of two spall tests, performed on tantalum with a light gas gun and an electron beam, have been carried out, using the AUTODYN-2D and DYNA-2D codes. For each test, the spall stress is calculated from the TAYLOR empirical formula, using a measured free surface velocity history parameter. The first objective is to reproduce the free surfac e velocity history and the spall layer thickness, the second one to de termine at spall time, and in the spall plane, the material strain rat e.