Modification of Jet Velocities in an Explosively Loaded Copper Target with a Conical Defect

TL;DR

This study explores how different buffer designs influence copper jet velocities in explosive loading, demonstrating control over jet behavior through experimental validation and simulations.

Contribution

It introduces a method to control copper jet velocities using multi-material buffers in explosive setups, validated by experiments and simulations.

Findings

Buffer design significantly affects jet velocity.

Optimal buffer configurations enhance or mitigate jetting behavior.

Experimental results agree with simulation predictions.

Abstract

In this work, the design and execution of an experiment with the goal of demonstrating control over the evolution of a copper jet is described. Simulations show that when using simple multi-material buffers placed between a copper target with a conical defect and a cylinder of high-explosive, a variety of jetting behaviors occur based on material placement, including both jet velocity augmentation and mitigation. A parameter sweep was performed to determine optimal buffer designs in two configurations. Experiments using the optimal buffer designs verified the effectiveness of the buffer and validated the modeling.