When simulating projectile penetrating into concrete targets, there are many concrete constitutive models and many parameters, but it's difficult for simulating penetration. In view of this, the application field of the model was given based on evaluation of typical concrete material models in Ls-Dyna, and then Johnson-Homquist concrete model was analyzed. The sensitivity analysis and test inversion were used for confirming model parameters with lower costs while improving the accuracy of penetration results. Part of the Forrestal invasion experiments was simulated by this method; the results show it is a simple and effective approach to better forecast the penetration results.