基于彈丸直徑和速度的靶板擊穿判據

Penetration criterion of impacted plate based on projectile diameter and its velocity

摘要: 文章提出了基于彈丸直徑和速度的靶板毀傷二次函數模型，其特點是毀傷函數的正值意味著靶板已被擊穿，其負值意味著靶板未被擊穿；還推導出了用試驗數據確定靶板毀傷函數的方法，通過令該毀傷函數為0而得到了基于彈丸直徑和速度的靶板擊穿判據，并給出了作為靶板擊穿判據的曲線形狀辨識方法；最后，用一組模擬數據驗證了該方法的實現過程，證明了該方法的可行性。

Abstract: A quadratic function model of plate damage by projectile impact, as related with its diameter and velocity is presented, whose positive value means that the impacted plate is penetrated and whose negative value means that the impacted plate is not penetrated. A method to determine the coefficients of the quadratic function using test data is proposed. The penetration criterion of impacted plate based on projectile's diameter and its velocity can be obtained by letting the quadratic function to be zero, and a curve shape identification method for the penetration criterion is also given in the paper. The procedure to determine the penetration criterion is shown through a group of simulated data, and the feasibility of the method is also confirmed by the example.

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