Research on Ballistic limit model for a typical 93W ball-Q235 steel plate projectile target system

A representative and most commonly used ballistic target system consisting of a 93W ball and Q235 steel plate is investigated for its ballistic limit fast calculation engineering model. The basic data on the material of the projectile target system was obtained through quasi-static compression tests on the mechanical properties of 93W ball and Q235 steel plate materials. Using a φ12.7mm ballistic gun and the ten shot v50 ballistic limit method, tests were carried out with 93W balls positively penetrating Q235 steel target plates and v 50 was obtained for 3g of 93W balls penetrating 6mm and 8mm thick Q235 steel plates respectively. Based on the Autodyn platform, a numerical simulation model of a 93W ball intruding through a Q235 steel target plate was established and the accuracy of the simulation model was verified using test data. On this basis, the range was extended to obtain v 50 for a total of 34 working conditions with 93W ball masses between 1 and 6g and Q235 steel target plate thicknesses between 2 and 12mm, and the v 50 engineering calculation model for 93W ball intrusion into Q235 steel plate was obtained by multiple linear regression. Comparative analysis with other representative v 50 engineering models shows that the resulting v 50 calculation model has a greater range of applicable speeds, higher accuracy and greater practicality. The results of the research can provide basic methods and tools for the design of warhead power, target protection, and the assessment of the destructive effectiveness of weapons and ammunition.