To enhance the neutralization efficacy of explosive reactive armor (ERA) against shaped charge jets (SCJs), this study integrates experimental and numerical approaches. Modularized armor panels were analyzed to investigate their dynamic fragmentation characteristics, SCJ morphological evolution, detonation dynamics of interlayer explosives, and damage effects on target plates, ultimately deducing the diffraction mechanism within ERA detonation fields. Results demonstrate that detonation waves induce panel tearing, with ejected fragments and detonation products actively intercepting SCJs. Increasing module quantity distributes blast loading, thereby mitigating overall deformation and prolonging jet–tip interaction duration. Peak protective performance is achieved with four modules, reducing SCJ penetration depth by 43 % while increasing eroded hole length by 55.7 %. This research establishes the coupling mechanism between panel configuration and detonation fields on SCJ disruption, providing critical insights for modern ERA design optimization.
Wang et al. (Mon,) studied this question.