Experimental examination and numerical NAG model analysis of spall sensitivity to microstructure in copper

S. Jacobi, E. Zaretsky, D. Shvarts

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

In order to achieve incipient and complete spallation, plane impact experiments were performed on three types of copper with different impurity levels. Dependence of the damage behavior on the material microstructure was found. The VISAR results of these experiments were used to examine the NAG model of Curran et. al., which includes a detailed description of microscopic void nucleation and growth dynamics. All measurements could be fitted by change of a single parameter in the model, the initial nucleation rate. The analysis demonstrates the competitive role of void nucleation and growth in the development of the spall.

Original languageEnglish
Pages (from-to)805-810
Number of pages6
JournalJournal De Physique. IV : JP
Volume10
Issue number9
DOIs
StatePublished - 1 Jan 2000
Event6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading - Krakow, Pol
Duration: 25 Sep 200029 Sep 2000

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