Hydrocode and microstructural analysis of explosively formed penetrators
Source abstract
Abstract
A comparison of residual microstructural features in tantalum, iron, and copper explosively-formed projectiles (EFP's) utilizing optical and transmission electron microscopy (TEM) was undertaken and these observations correlated with corresponding microhardness maps measured on the recovered EFP half sections. These microstructural comparisons and residual microhardness maps were then used to validate AUTODYN-2D hydrocode simulations of residual yield stress profiles and the geometrical parameters measured from the recovered EFP's. Both Johnson-Cook and Zerilli-Armstrong constitutive relations were applied and compared in these simulations which also examined the initiation parameters on EFP evolution. Calculated plastic strain and temperature contour plots were also correlated with observed microstructures and the microhardness maps.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Velocity Impact and Material Behavior · Energetic Materials and Combustion · High-pressure geophysics and materials
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References (43)
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