Method for estimating penetration depth of shaped charge

The invention provides a shaped charge penetration depth estimation method, which comprises the following steps of: sequentially simplifying a projectile body model, analyzing relative attributes of a projectile target material, analyzing a penetration mode and a conversion speed, dividing a projectile target action into different penetration stages, and determining a critical conversion speed judgment standard of each penetration stage; according to different penetration stages, the penetration depth of each stage is estimated in combination with parameters obtained by analyzing a projectile body model simplification formula and relative attributes of a projectile target material; a shaped charge penetration target body test is carried out, accuracy verification is carried out on the penetration depth estimated value of each stage, and the penetration mode, the missile target strength factor and the correlation coefficient of each stage are corrected; and a complete shaped charge penetration depth estimation