Device and method for simulating ballistic impact and real-time monitoring using linear pulsed laser

Abstract

The invention discloses a device and a method of using a line-shaped pulse laser to simulate ballistic impacts and carrying out real-time monitoring. The device includes a laser output module, a material testing simulation module and a monitoring module. The laser output module is used for outputting a needed laser, and shaping the same into the line-shaped laser to use the same to excite a line-shaped acoustic source on a surface of sample material. The material simulation testing module is used for using the laser to simulate ballistic impact testing of the material. The monitoring module isused for carrying out real-time monitoring on a propagation process of an impact wave generated after laser impacts on the sample material and a damage situation of the material. The device and the method improve anti-ballistic-impact testing simulation capability of armor material, and compared with traditional ballistic impact testing based on bullets and the like, the device and the method have the advantages of fastness, economy, high experimental repeatability, collection of micro transient process information and the like, can enable the armor material to iterate design phases in an early period of designing and development, and reduce reliance on actual ballistic impact testing.

Description

technical field [0001] The invention relates to the field of ballistic impact simulation, in particular to a device and method for simulating ballistic impact and real-time monitoring by using a linear pulsed laser. Background technique [0002] From armor that resists damage from swords in ancient wars to modern high-performance body armor with bulletproof and camouflage functions, from bulletproof shields for close defense to bulletproof chariots for long-range combat, the vigorous development of bulletproof armor has become the life and property of the wearer. Safety provides a strong guarantee. In recent years, the development of efficient, lightweight and economical armor materials has become a research hotspot in various military powers. [0003] In order to verify the reliability of materials, it is generally necessary to conduct comprehensive tests on various aspects of their performance. One of the most important part is to carry out impact test on it. Although t...

AI Technical Summary

Problems solved by technology

However, there is no precedent at home and abroad for the use of linear pulsed laser to simulate the dynamic loading of rapid heating and high strain rate in ballistic impact, to simulate the ballistic impact test of armor materials, and to use optical monitoring instruments to monitor the simulation process in real time

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