Study on predicting plate deformation under double charges coupled loading based on GBR-RFR stacking model

In modern information warfare, quickly and accurately destroying enemy key targets is crucial. The single damage mode of traditional ammunition no longer meets the demands of complex combat environments. Therefore, it is necessary to explore the damage modes and plastic deformation of targets under double charges coupling to achieve precision strikes. This paper studies the predictive model of plate deformation under double charges coupling. A double charges synchronous explosion was used as the means of coupling shock wave loading, and double charges experiments on the damage to Q235 metal plates were conducted. Based on the experimental results, a three-dimensional finite element numerical simulation model was established and its accuracy was verified. Further simulation conditions were added, and data on the plastic deformation at the center of the metal plate under double charges synchronous loading were calculated. A predictive model for the plastic deformation at the center of the metal plate was constructed based on the GBR-RFR stacking model, thereby obtaining a predictive model for the plastic deformation at the center of the metal plate under double charges synchronous loading. Through dual-source synchronous explosion experiments and finite element numerical simulations, plastic deformation data at the center of Q235 metal plates under different loading conditions were obtained. Validation results show that the finite element simulation model can accurately predict the deformation of the plate. On this basis, the predictive model constructed based on the GBR-RFR stacking model demonstrates high prediction accuracy, providing an effective method for predicting the deformation of metal plates under double charges synchronous loading.