Title

A Constitutive-Microdamage Model to Simulate Hypervelocity Projectile-Target Impact, Material Damage and Fracture

Authors

J. Eftis, University of Texas at El Paso
C. Carrasco, University of Texas at El Paso
Roberto A. Osegueda, University of Texas at El PasoFollow

Publication Date

9-2003

Document Type

Article

Comments

Eftis, J., C. Carrasco, and R. A. Osegueda. . A Constitutive-Microdamage Model to Simulate Hypervelocity Projectile-Target Impact, Material Damage and Fracture. Vol. 19, 2003.

https://doi.org/10.1016/S0749-6419(02)00036-0

Abstract

A set of constitutive-microdamage equations are presented that can model shock compression and the microdamage and fracture that can evolve following hypervelocity impact. The equations are appropriate for polycrystalline metals. For impact at a projectile velocity of 6.0 km/s, numerical simulations are preformed that describe the impact of spherical soda-lime glass projectiles with aluminum 1100 rectangular target plates. Three ratios of the projectile diameter to the target thickness are chosen for the simulations, providing a wide range of damage features. The simulated impact damage is compared with experimental damage of corresponding test specimens, illustrating the capability of the model.