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

S. Jacobi; E. Zaretsky; D. Shvarts

doi:10.1051/jp4:20009133

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

S. Jacobi, E. Zaretsky, D. Shvarts

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-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 language	English
Pages (from-to)	805-810
Number of pages	6
Journal	Journal De Physique. IV : JP
Volume	10
Issue number	9
DOIs	https://doi.org/10.1051/jp4:20009133
State	Published - 1 Jan 2000
Event	6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading - Krakow, Pol Duration: 25 Sep 2000 → 29 Sep 2000

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Experimental examination and numerical NAG model analysis of spall sensitivity to microstructure in copper",

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.",

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AU - Zaretsky, E.

AU - Shvarts, D.

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Y1 - 2000/1/1

N2 - 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.

AB - 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.

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JO - Journal De Physique. IV : JP

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T2 - 6th International Conference on Mechanical and Physical Behaviour of Materials Under Dynamic Loading

Y2 - 25 September 2000 through 29 September 2000

ER -

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

Abstract

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