![]() ![]() In the theoretical model, pressure was considered as the main factor and the use of the collapse angle, which is difficult to measure accurately, was avoided, thereby effectively improving the engineering practicability of the model. ![]() Because of the coexistence of cohesive and non-cohesive segments in the actual jet, determining an exact proportion of non-cohesive segment is beneficial for selecting the penetration model and improving calculation accuracy. The results showed that the proposed model can predict jet formation and help determine the proportion of non-cohesive segment of the jet. ![]() Static penetration experiments were performed to study the penetration ability, and the microscopic topography of the penetration channel was observed to reveal the potential effect of jet cohesiveness on the penetration performance. X-ray experiments were conducted to verify the model and investigate the jet formation. Jet formation was studied by performing theoretical analyses and numerical calculations, and a predictive model was proposed. ![]()
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