Article ID Journal Published Year Pages File Type
9704724 International Journal of Impact Engineering 2005 13 Pages PDF
Abstract
The phenomena and the test results of dense fragment cluster impacting armor plate are briefly summarized. The test results indicate that the impulse and the rate of energy deposition on the target and the impacting duration of the fragment cluster are the most important factors, which induces the multi-fragment effects, i.e. synergistic effects, in the impacting process. Meanwhile, they are the characteristic parameters that distinguish the cumulative effects from the additive effects. The analytical methods are employed to investigate the cumulative effects and additive effects caused by the dense fragment cluster. Based on the analysis of the terminal effect of a single fragment, the extrusion-shear damage model of the target impacted by the fragment cluster is developed, and two criteria for the occurrence of the cumulative effect are given and applied to the test analysis. The dimensionless characteristic parameter of the fragment-cluster/target-plate system is also derived.
Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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