Swiderski Waldemar, Hlosta Pawel
Military Institute of Armament Technology, 05-220 Zielonka, Poland.
Materials (Basel). 2019 Mar 22;12(6):956. doi: 10.3390/ma12060956.
The aim of the article is to present a new technique providing an increase in the reliability of standard destructive tests of light ballistic shields. During the ballistic impact (i.e., of projectiles or fragments) on the material and its penetration by these incoming items, the absorbed kinetic energy is transformed into heat. In particular, the material regions that are damaged generate heat, and around and above the damage, on particular areas of the surface of the sample, the temperature signal increases. While registering, thermal cameras can process the impact and penetration of a material by a projectile and can accurately determine the area of the material (around the point of impact and the area of penetration) that has been damaged. Two infrared cameras were used for our testing work. One recorded the changes to the temperature field on the surface with the ballistic impact and the second one on the opposite surface. These results were compared with those obtained by optical active thermography performed by the reflection approach. Selected results from all the tests are presented in this paper.
本文的目的是介绍一种新技术，该技术可提高轻型防弹盾牌标准破坏性试验的可靠性。在弹道冲击（即射弹或碎片的冲击）作用于材料并使其被这些入射物体穿透的过程中，吸收的动能会转化为热量。特别是，受损的材料区域会产生热量，并且在损伤周围及上方，在样品表面的特定区域，温度信号会增加。在记录过程中，热像仪可以处理射弹对材料的冲击和穿透情况，并能准确确定材料中已受损的区域（冲击点周围和穿透区域）。我们的测试工作使用了两台红外热像仪。一台记录弹道冲击时表面温度场的变化，另一台记录相对表面的温度场变化。将这些结果与通过反射法进行的光学主动热成像所获得的结果进行了比较。本文展示了所有测试的部分结果。
