| Summary: | The damage or penetration research of the long rods has attracted more and more attention from scholars worldwide. In this article, the dynamic compression tests of W-Zr reactive material are performed. Six experiments of the long rods impacting the multi-spaced plates at hypervelocity are carried out on a two-stage light gas gun. Two kinds of long rods, inert 40CrNi2MoA steel and W-Zr reactive material, are used. The initial impact speed ranges from 2040 m/s to 3200 m/s. According to results, W-Zr reactive material reacts at the strain rate of 2200 s−1 and higher, whose strength limit is related to the strain rate. The long rods can produce debris clouds when hitting the multi-spaced plates at the speed of 2040 m/s and higher, causing large perforation and great damaged area in the subsequent plates. The perforations and damaged areas of the multi-spaced plates depend on the specific kinetic energy of the long rods. The violent reaction behavior of the W-Zr reactive material helps to cause large perforation and damaged area of the subsequent plates than inert materials. It proves that the damage ability of the W-Zr reactive material is stronger than that of the inert material with a similar density.
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