Effect of Bubble Energy Load by Underwater Explosion on Plastic Deformation of Single-Layer Stiffened Plate

Effect of bubble energy load on plastic deformation of single-layer stiffened plate when subjected to non-contact explosive load was studied.The energy method principle was applied to calculate the plastic deformatio n taking into account the effect of bubble energy load.The results show a well agreement with the experimental results.Based on this,the relationship between the ratio of explosion distance to bubble radius and the rat io of deformation caused by bubble energy load accounting for the total deformations were analyzed.The results show that the plastic deformation by bubble energy load accounts for 1/4 total deformations of single-layer stiffened plate,which cannot be neglected in calculation practice.